Engine Oil
GM is also worried about just getting the car through warranty. Absolute longevity under abusive conditions is not their goal.
Try and find offshort specws for various motors and you will see that the same exa ct motor sold outside North America often gets thicker recommendations.
If I could find a steady supply of it I would use the German Castrol, for now I am using 15w-40 Rotella, no UOA, I really tend to drain it at 2-3000miles not because it is necessary but because I am "once bitten twice shy" and like to cut open filters to look for glitter. I am pushing a stock shortblock mighty hard and truely daily driving the thing 60 miles a day.
I know many of you will gasp at the 15w-40 but it is just a 40wt so not much thicker than 5w-30 and back to the overseas comment earlier, this was recommended weight overseas. I certainly wouldn't run this in winter though GM allows for 10w-30 down to 0F, but now a cool morning is in the 50s so it is fine.
Try and find offshort specws for various motors and you will see that the same exa ct motor sold outside North America often gets thicker recommendations.
If I could find a steady supply of it I would use the German Castrol, for now I am using 15w-40 Rotella, no UOA, I really tend to drain it at 2-3000miles not because it is necessary but because I am "once bitten twice shy" and like to cut open filters to look for glitter. I am pushing a stock shortblock mighty hard and truely daily driving the thing 60 miles a day.
I know many of you will gasp at the 15w-40 but it is just a 40wt so not much thicker than 5w-30 and back to the overseas comment earlier, this was recommended weight overseas. I certainly wouldn't run this in winter though GM allows for 10w-30 down to 0F, but now a cool morning is in the 50s so it is fine.
Originally Posted by 96capricemgr
back to the overseas comment earlier, this was recommended weight overseas. I certainly wouldn't run this in winter though GM allows for 10w-30 down to 0F, but now a cool morning is in the 50s so it is fine.
Originally Posted by dhdenney
Which ones are you talking about? I'm not saying you're wrong, just interested in discussing it. Oil threads are usually a pissing contest anyway. 
pretty much most of their multiviscosity oils. When I refer to them not being ideal for DD Im refering to 3000+ mile oil changes.
Originally Posted by buffman
pretty much most of their multiviscosity oils. When I refer to them not being ideal for DD Im refering to 3000+ mile oil changes.
Originally Posted by 96capricemgr
Overseas they recommended 15w40 in some climates.
Like I said too if people open an owners manual 10w-30 was OK down to 0F too so 15w at summer temps is no problem.
Like I said too if people open an owners manual 10w-30 was OK down to 0F too so 15w at summer temps is no problem.
From them the Mobil 1 full synthetic is 5.99 a quart and the Royal Purple is 6.99 so its just a dollar more a quart, so I use it.
I used one of those fram XP filters and the Royal purple and the oil was still super clean at 4K, I changed it at 6K and it still looked pretty good, I was surprised, I tried that once with Castrol Syntec haha it was blacker than molasses
Originally Posted by dhdenney
Yeah I hear that. If you're gonna use an expensive synthetic oil, use one that's gonna hold up and keep it in there as long as possible. I'm wanting to try that M1 ESP I mentioned earlier in my VW. If I decide to try it, I'm gonna use UOA and shoot for 20K on it.
as long as they're highway miles, the car was taken care of, and the VW doesn't have an engine that has fuel dilution problems, it's a possibility. The gf's car ran 6150 miles (01 cavalier 2.2L OHV) on the Mobil Clean 5000 10w30 (Dino Oil). She is mostly all highway miles. Blackstone had to comment her 6150 oil looked as good wear wise as oil from similiar cars with 4000 miles on them. They said to continue to 7k this next OCI.
Originally Posted by buffman
as long as they're highway miles, the car was taken care of, and the VW doesn't have an engine that has fuel dilution problems, it's a possibility. The gf's car ran 6150 miles (01 cavalier 2.2L OHV) on the Mobil Clean 5000 10w30 (Dino Oil). She is mostly all highway miles. Blackstone had to comment her 6150 oil looked as good wear wise as oil from similiar cars with 4000 miles on them. They said to continue to 7k this next OCI.
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