indy042

Hey,
I was told a while back that unless you go with synthetic oil when the car is new, that you shouldn't later as it will sling it. So I forgot about it and just went with the Castrol 5-30. After reading on here, I wondered if that was really true. If not, what is a preferred brands to stick with? Would this be a situation where a blend is preferrable?

Thanks much for the help!

-I

03GT96

Every used vehicle that i have had, i went with synthetic oil. Mileage has ranged anywhere from 20'000 to 60'000 miles and i havent had anytrouble at all. Mobile One is what i like.

Smooth_J

Not to hi-jack the thread, but how often do you change the oil since you use synthetic now?

SOHCtimes2

I got my car with 60k on it and i started putting 5w30 mobil 1 full synthetic in it. I always change every 3000 miles...no matter what oil i use.

monkeydude3

but the question at hand, that I also would like to know, can you go from regular to synthetic after many miles? Or should you stay with regular?

I'm goin valvoline max life regular soon (I think it's a blend)


I've always thought oil is oil, you just have different quality levels

03GT96

I change it anywhere from 4000 to 5000 miles. Why?

deesgt

Max life does'nt have a blend. They have a regular or a full synthetic.

monkeydude3

okay... but can you switch? is there any harm switching and what would it be if there is?

deesgt

you will get different answers, Man. Alot of people say no. Synthetic oil can sometimes worsen very small leaks because it is so good at cleaning deposits.

monkeydude3

what I thought i'd do, is I have a case of max life regular. good for 2 changes. If igure I'll run that, then try the synthetic max life and see how it likes it