Originally Posted By: CATERHAM
You're right but everyone knows using a 20wt oil, especially a 0W-20 can cause all kinds of problems, everything from male pattern baldness to impotence and that's why real men will never use 20wt oil.
If 0W-20 was easier to find and the only one they had wasnt Mobil 1 AFE, id use it. I like a thicker 20 (the actual 30) most of the time, so id get the ail order Redline if my car needed a 30 and liked a light or medium 30. Until then, i buy the Supertech 5W-20. Put it in my aunt's car that is doomed to die, no amount of love will save it, not with an owner like that, no. Ford Focus is one of the marvels of 20th century technology. That oil is emerging as a faorite of mine, too. Go conventional! but, careful, it might be radioactive and cause lupus. After all, it DOES say 5W-20 on the jug. I know that more often than not, its FINE. Unless your engine is screwed. Then it might not be fine, and also might.
Now, as to the other stigmas of 20 weight oil, and also CATERHAM i have a question, you are the resident expert AFAIAC: Is it true that you shouldnt put it in cars from the 80s and the 90s "beause those cars were made for 30 weight oil?" Or can you give it a shot.. what are some signs, for cars that do NOT have a toil pressure gauge?
5W-20, i could put it in almost anything except for some cars that are known to like a 40. Id probably go a 30 or 40 in those, depending on how thick it really is.
HTSS+RR with the 0W-20 in the E430 is making me think about what you CANT do with 0W-20. Or 5W-20. Seems the 5W-20 really IS fine, since 0W-20 is hard to find
at Walmart. And thats the only place i buy most anything..................