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As the title say, why to use oversize oil filter? I know it has more area to filter, but any negative effect like lower oil pressure? Is it true that bigger filter = lower oil pressure?

OK, I have seen a lot of people saying that someone is running low on oil, 2 qt low in a 4 qt system or even 3 qt low in a 4 qt system. Is the low oil pressure light on the dashboard suppose to light up? How low will it light up? For instance, in my 86 Civic beater, I am sure the oil light is...

In order to clean it up a little bit? It has 213000 miles on it and it's burning about 1/2qt per 3000 miles. If so, can anyone recommed which oil I should use and for how long? Also 3000 miles then switch back to regular dino oil?

I read a lot of people saying that a certain engine is hard on oil and some other engines are easy on oil. What does it mean? And how to determine if an engine is easy or hard on oil? High rev engines are harder on oil in general? And vice verse? Thanks guys!

I have so mnay quarts of oil in my storeage because I just can't stop buying on slae oil from Wally, lol. My question is: How long are they good for? Given that they are still in the bottle and I didn't open the cap yet. 1 year? 2 years? maybe 3 years?

This is a question for me for a long time and I think you guys can help me with that. Let say, a car's factory recommend(modern Honda and Ford) 5w-20(I am in Calif so no sub zero temp), what happens if I use a 20W-50 oil in it? It is not a turbo engine. But will "thicker" oil give better...

My sister in law bought a Element in last Aug, and she hasn't change the oil which come with the car, she did add 1 quart of oil at about 10K miles, that's Chervon dino, 20W-50(appartnly, what's in her storage for her old beater) and now the Element has about 13K miles in it. I ususlly change...

I read many posts saying that only use dino oil for break in, but I think a lot of expensive cars come with syntheic oil from factory. Can someone explain it?

How bad is Valvoline Syn?? I got them from PepBoys with the rebate and I just got the check from them. But I heard that Valvoline is not a good oil, is it only to their syn or dino, or both? I have been a Mobil 1 user for many years but I cant resist the free oil.......