Used Oil Analysis - Post Them Here
03-13-2012, 05:41 PM
#576
I mean the viscosity is not bad but definitely not where my Mobil1 typically is. Not to mention this is during cold weather. I'd like to see how it stands up after 3,000 miles during a Texas summer. It's definitely suitable oil but not very impressive for a boutique oil. I have never been a fan of Royal Purple.
Just for us you should switch to Mobil1, Red Line, or Amsoil for an OIC and see what gives.
Just for us you should switch to Mobil1, Red Line, or Amsoil for an OIC and see what gives.
. I am going to run this oil for another 2K miles and do a followup test with the RP guys to see where this oil goes.But I agree, like my past 2 UOI's, not bad numbers, but surely not good enough for me to be paying out my *** for.
03-13-2012, 05:46 PM
#577
Paimon, what random crap are you referring to in the oil? With regard to shear Id suspect you’d get a little lest shear in summer as I think you are getting more fuel shear than mechanical. I’ve read recently from someone that spends time around some of the major LeMans race teams that they aren’t terribly concerned about oil shear, but I need to get my head around those thoughts better.
04-05-2012, 07:00 PM
#578
Series 2, 2600 total miles incl track use, MC 5w30
Here's a run I did for giggles because this is what my dealer uses and says to use for top up/owner service. This oil was in for about a month and a half, was a double flush (10 quarts total exchanged to start this fill), and included 150 super hard track miles. I premix with 6oz DSFM per fill up on the street and on the track I use Protek R at 16oz per full tank. OEM oil and air filter, no mods, and oil was Motorcraft syn blend 5w30. My dealer uses the Motorcraft despite it being a synthetic blend as the own preference since they are an international Ford super store and use 5w30 in the RX8. Sample date 3/2 was all street use and oil went in early February. Sample date 3/15 saw 150mls on the track and the rest on the street. My apology for the math being off on miles report, but its immaterial. Make up oil is correct. Again, this oil fill was the same oil fill not changed between samples, sampled before and after track use.
04-05-2012, 07:12 PM
#579
Rockie Mountain Newbie
Okay, so if I've got this right, back in Feb, you did a double flush oil change to get a pretty clean load of oil into the engine.
Then, you drove ~2000 miles, and took a sample of what was in your engine.
Then you went to the track, slapped on 150 miles there, and then drove for another 450 miles, and took another sample of the same oil?
So, if that's the case, you increased Alum, Chrom, Potas, and Silicon by 1, Iron by 3, but your Moly went up by 19.
Also, your viscosity and flash point went up too. That's a bit odd.
Is moly a wear item in the engine housings or apex seals?
BC.
Then, you drove ~2000 miles, and took a sample of what was in your engine.
Then you went to the track, slapped on 150 miles there, and then drove for another 450 miles, and took another sample of the same oil?
So, if that's the case, you increased Alum, Chrom, Potas, and Silicon by 1, Iron by 3, but your Moly went up by 19.
Also, your viscosity and flash point went up too. That's a bit odd.
Is moly a wear item in the engine housings or apex seals?
BC.
04-05-2012, 10:01 PM
#580
Okay, so if I've got this right, back in Feb, you did a double flush oil change to get a pretty clean load of oil into the engine.
Then, you drove ~2000 miles, and took a sample of what was in your engine.
Then you went to the track, slapped on 150 miles there, and then drove for another 450 miles, and took another sample of the same oil?
So, if that's the case, you increased Alum, Chrom, Potas, and Silicon by 1, Iron by 3, but your Moly went up by 19.
Also, your viscosity and flash point went up too. That's a bit odd.
Is moly a wear item in the engine housings or apex seals?
BC.
Then, you drove ~2000 miles, and took a sample of what was in your engine.
Then you went to the track, slapped on 150 miles there, and then drove for another 450 miles, and took another sample of the same oil?
So, if that's the case, you increased Alum, Chrom, Potas, and Silicon by 1, Iron by 3, but your Moly went up by 19.
Also, your viscosity and flash point went up too. That's a bit odd.
Is moly a wear item in the engine housings or apex seals?
BC.
FP and viscosity could have increased for a few reasons. First, a lot of oil was added during the track day and that could have restored viscosity and having fresher oil with less fuel could have raised the fp. Second, the oil could have been significantly oxidized increasing the viscosity. Third, the track time itself evaporated out a large portion of the fuel dilution.
I think the apex seals are iron.
You are correct in how the OCI transpired.
04-05-2012, 10:44 PM
#581
Here's a run I did for giggles because this is what my dealer uses and says to use for top up/owner service. This oil was in for about a month and a half, was a double flush (10 quarts total exchanged to start this fill), and included 150 super hard track miles. I premix with 6oz DSFM per fill up on the street and on the track I use Protek R at 16oz per full tank. OEM oil and air filter, no mods, and oil was Motorcraft syn blend 5w30. My dealer uses the Motorcraft despite it being a synthetic blend as the own preference since they are an international Ford super store and use 5w30 in the RX8. Sample date 3/2 was all street use and oil went in early February. Sample date 3/15 saw 150mls on the track and the rest on the street. My apology for the math being off on miles report, but its immaterial. Make up oil is correct. Again, this oil fill was the same oil fill not changed between samples, sampled before and after track use.
Silicon at 12 + virgin # is normal, and yours is 6.
You don't have fuel dilution, a coolant leak, or any significant wear.
The moly and boron antiwear add pack looks strong.
I just changed my oil at 5.5k miles and 16 months.
This oil can or could have gone that long, too, without any extra wear.
04-08-2012, 01:43 PM
#582
The UOA at 613 miles is so good it looks like a VOA.
Silicon at 12 + virgin # is normal, and yours is 6.
You don't have fuel dilution, a coolant leak, or any significant wear.
The moly and boron antiwear add pack looks strong.
I just changed my oil at 5.5k miles and 16 months.
This oil can or could have gone that long, too, without any extra wear.
Silicon at 12 + virgin # is normal, and yours is 6.
You don't have fuel dilution, a coolant leak, or any significant wear.
The moly and boron antiwear add pack looks strong.
I just changed my oil at 5.5k miles and 16 months.
This oil can or could have gone that long, too, without any extra wear.
Looks like filtration and contamination ingress is well under control lending to the potential for extended drain intervals at least beyond 3K miles.
Last edited by Iluvrevs; 04-08-2012 at 01:56 PM.
04-09-2012, 07:37 AM
#583
Yeah, the viscosity loss doesn’t appear to have had much impact on wear metal occurrence in the UOAs. I wanted to see if I really need to change before and after tracking, which it appears I do not. The Motorcraft brand oils seem to have a pretty solid performance and reputation on the internet too. This summer I’m planning on running 20w50 mineral oil under the same conditions and testing methodology and will post that up. There I want to compare viscosity loss only, but there may be other useful observations too. Fuel economy and apparent power output was not benefited with running thinner oil over my 10w60.
Looks like filtration and contamination ingress is well under control lending to the potential for extended drain intervals at least beyond 3K miles.
Looks like filtration and contamination ingress is well under control lending to the potential for extended drain intervals at least beyond 3K miles.
04-09-2012, 07:45 AM
#584
Paimon, what random crap are you referring to in the oil? With regard to shear Id suspect you壇 get a little lest shear in summer as I think you are getting more fuel shear than mechanical. I致e read recently from someone that spends time around some of the major LeMans race teams that they aren稚 terribly concerned about oil shear, but I need to get my head around those thoughts better.
"The silicon and sodium, in these amounts, may be evidence of dirt in the oil, or a dirty sample. One thing, though is that the viscosity identifies it as a 20 weight oil, and right on the money for our 5W-20s."
I have continued to use the same oil for just about 1000 miles, so I am going to send in the follow up sample to see how the results compare and see what the extra 1000 shows, hopefully that will be enough miles to gather some significant data on how the RP oil does over time.
04-09-2012, 08:05 AM
#585
I tried RP 10/40 wgt some years back and I also got the reduced viscosity in about 2K miles.
I dont like it. My front bearing had substancial wear ( almost throught the copper part) in less than 40K miles. I didnt run RP the entire 40K, but for a large portion I did.
Redline is now my oil of choice. I now run the 5w/30 with excellant results.
Of course there are also other excellant oils out there. I think we do need the zinc though.
Now threadjacking a little here, but I read the post in which 16ozs of premix was used per tank for tracking. I figured it up one time, not too long ago, the actual percentage of oil/gas I was using on a track day. I was mixing 1 oz per gallon at the time. That 1 oz per gallon plus what the omp was injecting came out to ....almost a 50/1 ratio!!!!! I cut back after I realized that. Too much is just as bad as too little in my book.
I dont like it. My front bearing had substancial wear ( almost throught the copper part) in less than 40K miles. I didnt run RP the entire 40K, but for a large portion I did.
Redline is now my oil of choice. I now run the 5w/30 with excellant results.
Of course there are also other excellant oils out there. I think we do need the zinc though.
Now threadjacking a little here, but I read the post in which 16ozs of premix was used per tank for tracking. I figured it up one time, not too long ago, the actual percentage of oil/gas I was using on a track day. I was mixing 1 oz per gallon at the time. That 1 oz per gallon plus what the omp was injecting came out to ....almost a 50/1 ratio!!!!! I cut back after I realized that. Too much is just as bad as too little in my book.
04-09-2012, 09:58 AM
#586
04-09-2012, 11:06 AM
#587
to many variables in play on the track..
I would say that 20/30wt will have lower pumping loses than 60wt oil therefore more power produced by the engine will make it to the wheels all other things being equal.
I would say that 20/30wt will have lower pumping loses than 60wt oil therefore more power produced by the engine will make it to the wheels all other things being equal.
04-09-2012, 11:25 AM
#588
I tried RP 10/40 wgt some years back and I also got the reduced viscosity in about 2K miles.
I dont like it. My front bearing had substancial wear ( almost throught the copper part) in less than 40K miles. I didnt run RP the entire 40K, but for a large portion I did.
Redline is now my oil of choice. I now run the 5w/30 with excellant results.
Of course there are also other excellant oils out there. I think we do need the zinc though.
Now threadjacking a little here, but I read the post in which 16ozs of premix was used per tank for tracking. I figured it up one time, not too long ago, the actual percentage of oil/gas I was using on a track day. I was mixing 1 oz per gallon at the time. That 1 oz per gallon plus what the omp was injecting came out to ....almost a 50/1 ratio!!!!! I cut back after I realized that. Too much is just as bad as too little in my book.
I dont like it. My front bearing had substancial wear ( almost throught the copper part) in less than 40K miles. I didnt run RP the entire 40K, but for a large portion I did.
Redline is now my oil of choice. I now run the 5w/30 with excellant results.
Of course there are also other excellant oils out there. I think we do need the zinc though.
Now threadjacking a little here, but I read the post in which 16ozs of premix was used per tank for tracking. I figured it up one time, not too long ago, the actual percentage of oil/gas I was using on a track day. I was mixing 1 oz per gallon at the time. That 1 oz per gallon plus what the omp was injecting came out to ....almost a 50/1 ratio!!!!! I cut back after I realized that. Too much is just as bad as too little in my book.
04-09-2012, 11:33 AM
#589
When I track at 600 ft elevation, I got 259 hpr max, with the BHR ign it went up to 269, but out here in West texas, I can only seem to get 250 hpr.
I've got winter gas in still so when I fill up in several weeks, I'm going to find out if I'm tracking less BTU gas or altitude of 3300 ft.
Reached 105-107 might only be a little more accurate than using fuel gauge to measure mpg.
04-09-2012, 11:05 PM
#591
I only have four 20 minute sessions on a 1.8 mile track with a lot of 30 mph corners and braking, and I use about 2/3 tank.
I can only hit 90 mph for a few seconds in 4 places, but the supercars hit about 110 or more.
Look up vids at H2R San Marcos, tx on youtube, and you can maybe compare.
Last edited by REDRX3RX8; 04-09-2012 at 11:08 PM.
04-10-2012, 08:48 AM
#592
How much the omp supplies is based on the engines load and rpm only. No other parameters are involved.
It's true every driving situation is different--no doubt. But if you are using only 1/4 of a quart per 150miles of track driving--it may not hurt to check your oil injectors/lines? Our cars are not getting any younger and bad injectors/lines are starting to show up.
Now yours may be just fine IDK, but it is wise to be cautious.
During street driving ( I dont drive hard or fast on the street) I will use a quart in 2 K miles.
My omp settings are stock.
Just passing on what I have seen my car do. I am sure everones is a little more different.
car is a hoot on track --eh?
It's true every driving situation is different--no doubt. But if you are using only 1/4 of a quart per 150miles of track driving--it may not hurt to check your oil injectors/lines? Our cars are not getting any younger and bad injectors/lines are starting to show up.
Now yours may be just fine IDK, but it is wise to be cautious.
During street driving ( I dont drive hard or fast on the street) I will use a quart in 2 K miles.
My omp settings are stock.
Just passing on what I have seen my car do. I am sure everones is a little more different.
car is a hoot on track --eh?
04-10-2012, 11:53 AM
#594
Sorry, totally missed this. I guess I am not exactly too sure the effect of the junk in my oil, but I am going by what the tech at RP said:
"The silicon and sodium, in these amounts, may be evidence of dirt in the oil, or a dirty sample. One thing, though is that the viscosity identifies it as a 20 weight oil, and right on the money for our 5W-20s."
I have continued to use the same oil for just about 1000 miles, so I am going to send in the follow up sample to see how the results compare and see what the extra 1000 shows, hopefully that will be enough miles to gather some significant data on how the RP oil does over time.
"The silicon and sodium, in these amounts, may be evidence of dirt in the oil, or a dirty sample. One thing, though is that the viscosity identifies it as a 20 weight oil, and right on the money for our 5W-20s."
I have continued to use the same oil for just about 1000 miles, so I am going to send in the follow up sample to see how the results compare and see what the extra 1000 shows, hopefully that will be enough miles to gather some significant data on how the RP oil does over time.
Mobil 1 0w40 has approx 4ppm silicon for antifoam, and other oils like Exxon Superflo had lots of sodium as cleaning detergent.
Silicon can rise approx 12 ppm for the max dirt, and high sodium with potassium might indicate eg coolant.
04-10-2012, 12:05 PM
#595
How much the omp supplies is based on the engines load and rpm only. No other parameters are involved.
It's true every driving situation is different--no doubt. But if you are using only 1/4 of a quart per 150miles of track driving--it may not hurt to check your oil injectors/lines? Our cars are not getting any younger and bad injectors/lines are starting to show up.
Now yours may be just fine IDK, but it is wise to be cautious.
During street driving ( I dont drive hard or fast on the street) I will use a quart in 2 K miles.
My omp settings are stock.
Just passing on what I have seen my car do. I am sure everones is a little more different.
car is a hoot on track --eh?
It's true every driving situation is different--no doubt. But if you are using only 1/4 of a quart per 150miles of track driving--it may not hurt to check your oil injectors/lines? Our cars are not getting any younger and bad injectors/lines are starting to show up.
Now yours may be just fine IDK, but it is wise to be cautious.
During street driving ( I dont drive hard or fast on the street) I will use a quart in 2 K miles.
My omp settings are stock.
Just passing on what I have seen my car do. I am sure everones is a little more different.
car is a hoot on track --eh?
I like your idea of only hitting 7k, and my driving is probably perfect for the engine.
My 8 never used much oil, but I know it flows some on track day so I'm content with that 8 oz I put in.
I drive around real easy, but at least a few minutes everytime I'm out, I floorboard it, and the track day 4 times a year makes sure I've burned up any carbon.
Yeah, track day is what I live for, but Texas is so busy with the oil and real estate boom that the independant HPDE guys are too busy working to put on track day.
Maybe I'll have to go to some of those depressed states to do my leisure activity.
04-10-2012, 09:41 PM
#597
I have kept up with 500 hpr cobras, and some others, but we all know they just had not learned their car , yet. When I'm out on the street, I know exactly what I can do under changing surfaces and traction.
I like to tweak with minimal mods so I don't go for real sticky rubber like a friend on here Altain. When I rode with him, I think it pulled close to the 1.2 g's I've heard on Toyo 888's, and I was a little sick. I like a tire that will pull about 1 g dry and be good in the wet so I can work the traction. My best fun was on a drizzly day last year, and no fast cars like Bimmers or Vettes could catch me.
My 8 never seemed to use much motor oil, but I never have driven in stop and go where the revs keep coming; mostly rev it on the track.
Since, I know the omp is set to the low side, I knew to add that premix ( Mobil 2t ) since about 2000 miles. I took a original leading plug out at 28k miles, and there was no black on it; just shiny metal inside with a small amount of that tan sand looking deposit. I don't know if that means I'm not premixing or injecting enough or the BHR ign is burning all the carbon off.
04-11-2012, 10:11 AM
#598
sounds good man and you are welcome to join us anytime. We just have a good time and we have had the rare auto 8 out there. Braking and handling is a big strenght in this car.
We are all about to give up the dedicated r compounds for tracking and just buy the RE11's instead too. Changing wheels and tires is a PITA at times.
We are all about to give up the dedicated r compounds for tracking and just buy the RE11's instead too. Changing wheels and tires is a PITA at times.
04-11-2012, 02:08 PM
#599
Olddragger, Id had thought too regarding premix quantity in an operating OMP. For the sake of consistency I will run the same rates this summer with the 20w50 but until them I致e cut back on the track dose. Thanks for putting some numbers to it.
Red and Nad, its highly unlikely that my estimations of power or mpg would be materially off from any other testing methodology given the consistency of my results and the population of my samples. The power estimation is a little newer to me though results have been pretty consistent but the MPG has proven itself consistent for well over 1000 samples over multiple applications. However, if either of you can provide any hard evidence to the contrary I知 certainly interested and the geek in me would be appreciative.
Red and Nad, its highly unlikely that my estimations of power or mpg would be materially off from any other testing methodology given the consistency of my results and the population of my samples. The power estimation is a little newer to me though results have been pretty consistent but the MPG has proven itself consistent for well over 1000 samples over multiple applications. However, if either of you can provide any hard evidence to the contrary I知 certainly interested and the geek in me would be appreciative.
04-11-2012, 02:15 PM
#600
sounds good man and you are welcome to join us anytime. We just have a good time and we have had the rare auto 8 out there. Braking and handling is a big strenght in this car.
We are all about to give up the dedicated r compounds for tracking and just buy the RE11's instead too. Changing wheels and tires is a PITA at times.
We are all about to give up the dedicated r compounds for tracking and just buy the RE11's instead too. Changing wheels and tires is a PITA at times.