synthetic vs conventional oil
02-25-2006, 06:45 PM
#3
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Originally Posted by dannobre
Please learn to use the Search function of this forum...this has been beaten to death already 
dannobre is right.. basically mazda doesn't know the long term effects of using synthetic oil on the 8.... So they aren't sure if the synthetic oil will damage the engine... But I personally recommend using Non-Synthetic 5w-20 Castrol GTX..... but do the search and see what you think... basically it comes down to what you want.........
02-25-2006, 07:20 PM
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if you get rid of the stock oil injectors and add premix to the fuel, then yes you can use synthetic for sure. This has been documented on rx7club too I'm certain, basically it has to do with oil injection system being the primary concern as I recall.
02-25-2006, 08:23 PM
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Originally Posted by Rotary78
But I personally recommend using Non-Synthetic 5w-20 Castrol GTX..... but do the search and see what you think... basically it comes down to what you want.........
02-25-2006, 09:25 PM
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Here's a good place to start. RG's Oil Blog
02-25-2006, 10:22 PM
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Yep, it was RotaryGod at 7S8, I bore witness to the discussion. He has an incredibly lengthy post on this topic and very good explanations in the tech section. Feel free to use the search button if you cannot find it on your own.
02-25-2006, 10:26 PM
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I really wish I knew about the Castrol Syntec solvency in fuel so I could crack into my stock of the Green oil... 
So far we only really have ok'd the Valvoline and Royal Purple brands, and nixxed the Mobil1
So far we only really have ok'd the Valvoline and Royal Purple brands, and nixxed the Mobil1
02-25-2006, 10:29 PM
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Originally Posted by dazygirl415
Yep, it was RotaryGod at 7S8, I bore witness to the discussion. He has an incredibly lengthy post on this topic and very good explanations in the tech section. Feel free to use the search button if you cannot find it on your own.
Shouldn't be too hard to find.
Originally Posted by tiggerlee
Here's a good place to start. RG's Oil Blog
02-25-2006, 10:44 PM
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Originally Posted by dazygirl415
lol, I totally missed your post. must be the wine
hahaha I just had to give ya a rough time lol. Have one for me!
02-25-2006, 11:40 PM
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Originally Posted by dannobre
Please learn to use the Search function of this forum...this has been beaten to death already
02-26-2006, 12:29 AM
#18
Originally Posted by nolarx8
so what makes you come here. never seen this ? before, my advice to you being that your here 24/7 DONT CLICK ON THE THREAD this guy will figure out the search button. i get so pissed when people chime in just to say search first when they have nothing to add to the thread
10-19-2019, 09:08 PM
#21
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Wrong 5w20? Even mazda dont really believe that
hahahaha dannobre is right.. basically mazda doesn't know the long term effects of using synthetic oil on the 8.... So they aren't sure if the synthetic oil will damage the engine... But I personally recommend using Non-Synthetic 5w-20 Castrol GTX..... but do the search and see what you think... basically it comes down to what you want.........
dannobre is right.. basically mazda doesn't know the long term effects of using synthetic oil on the 8.... So they aren't sure if the synthetic oil will damage the engine... But I personally recommend using Non-Synthetic 5w-20 Castrol GTX..... but do the search and see what you think... basically it comes down to what you want.........
10-20-2019, 10:08 AM
#22
Really are you stupid why would you use 5w 20 hell every 8 not in america uses 5w30 cuz america tried to be better on enviroment and gas mileage which dont think helped gas any. unless youre under warranty which doubt you are now or just got good oil for ridiculously cheap id not use 5w20 if anything lightest oil id use is 5w 30 but most people use 10w 30 or 10w40 on rx8s from everyone ive spoke to and read about i personally use 5w30 or 10w30 depending on time of year
Ok then.
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