or maybe the heat was killing the oil who knows ~

like i said, after i changed it, it never happen again.

From that time, I keep my oil change schedule tight as hell. and looking at the oil press gauge every couple minutes or so.

Wait for next summer to come ~ So I can tell if it has anything to do with old oil.

 

I agree that on BITOG there are RP fans and haters - IMHO, it is a good oil that anyone can use with confidence.

As for the shearing BITOG likes to talk about, is not really an issue unless someone is running 7500+ mile oil changes and no one should be doing this with an 8 (I do 2500, but see 3750 as a good number as well, and 5000 as a max) because of our fuel dilution issues.

M1 is a good synthetic, but gets some grief on BITOG because they went from a primarily Group IV base stock to a group III blend (with some IV and V) and are charging the same or more. That said, it is a good oil.

Personally, I am most impressed with Pennzoil Platinum (Group III/V blend), as it is showing extremely good wear numbers in every vehicle using it and is especially good in engines with heavy fuel dilution (like VW/Audi) where many other oils are not working so well. The only oil I would pick over PP right now would be Amsoil or Redline, but they are quite a bit more expensive and cannot be found locally.

 

I dunno I think Amsoil sells good oil, they update their specs really fast and stuff. but for some reason they love to do those *chain store kind of selling* thing, I got their ATF once for my bro's SE-R (cuz it calls for Matic-K spec, only Amsoil has it that time)

Redline yeah... is on the expensive side, but they're group V so I guess that explains why.

I see PP everywhere. I might try them after I try Redline. (Currently using Shell Full Synthetic)

 

Yea, a lot of people hate AMSOIL's business model (myself included), but they do make great oils for the most part. The SSO 0W30 (Signature Series) is probably their best oil, and may be the best oil on the market today.

Redline is a great oil as well, but being a polyol ester (Group V) based oil, you cannot run oil analysis samples on it until you have run it a few oil change intervals (OCIs) as esters are great cleaners and will pull all of the built up dirt into the oil until it gets you motor clean - distorting any oil analysis run early on.

I may try one of these someday, but I still like short OCIs, and these cost enough more to make a significant difference over $5.75/quart PP at Wally World.

 

BACK to pressure question: What's the highest and lowest you guys have seen?

Yesterday:
Low - 8 psi
High - 80 psi

 

ok thread revival because i also have the same question as jedi... today the lowest i seen was 8 psi and highest was around 78 psi and it seems like my car was idling a little rougher when the psi is low. i changed my oil around 1,700 miles ago and does it mean my oil needs to be changed again or is my oil too thin? by the way i am using 5w20

 

5w20 - your oil is too thin.

 

only 5w-30 for me these days.

 

Im using Redline 10w40 right now (and I top it off with Syntec 0w30 about 2 weeks ago, 1/2 quart I think ?)

Highest oil pressure I've seen is about 530 kPa (Which is about 77 psi), when it was new, I think I got some highest number

My car is due for another oil change real soon. but I will do that after my trip to Asia

 

i guess my next oil change will be 5w30. thanks

 

don't forget what you're supposed to bring me back!