what oils do we all use

[NZAE92]

Hey
the title says it all post what oils we use

i use 15w40 castrol GTX

[Createdtoburn]

heh 15-40, thats a Diesel oil weight..

[Ghostyman]

I have 15-40 Rotella T diesel oil in there now. Next oil change it'll probably go back to the cheapest 5-30 I can find.

[NZAE92]

whats the best for a 4AF

[Zembonez]

Not a Corolla owner but the xB lives on Mobil1

[PhatRoyale]

I use 0W30 German Castrol Syntec on a 7A-FE with 136K miles.

[Ghostyman]

Originally Posted by NZAE92

whats the best for a 4AF

People will debate this to death. But my $0.02, assuming the engine is in good health:

5-30 if you're using conventional oil.

0-30 if you're spending the moolah for synthetic.

[NZAE92]

i haven't tried synthetic.

A mechanic suggested putting 20-50 in it but i don't like him that much.

was thinking bout putting synthetic into it but a car that has

257685 kilometers on it and for the americans (161052 miles) would it kill it or

make it a lil better. im not sure

[Ghostyman]

You won't really notice a difference if you switch to synthetic unless you also switch weights (and even then you're unlikely to notice anything). Synthetic's benefits are overstated most of the time. It is definitely higher quality than conventional oil but, if you change your oil regularly, you won't see those benefits. Synthetic lets you change the oil at longer intervals which is a plus for some people.

I (sometimes) put synthetic oil in my MR2 Turbo because it is subjected to much harsher conditions than my other cars. I can't justify the cost on the other cars. They get dino oil.

I recommend running the lowest "cold" weight oil that's available (thus my 0-30/5-30 suggestion above). You want it to flow well when you first start the car up and 30W when the oil warms up should give you good flow and pressure.

[boopie]

Lubriguard 5w-30 oil.$.99 a quart. Cheap stuff. That and a bottle of slick 50.

[SCT]

5W-30 Mobil1 Fully Synthetic from mile 0000001. 4AF, 237700+ miles, the motor is still smooth and the only thing under the hood that never had problems.

[Flashmn]

20W50 MINERAL

[eage8]

I use 10w30 Castrol GTX...

20w50 in my rx-7

[xxgmsmgxx89]

whats best for like North East climate? hot in summer, cold in winter...im running 5W 30 conventional oil they throw in at the gas station that does my car...should I get something better, like Royal Purple or Castrol Syntec? i was told by some random person that if you put Royal Purple in an older car that it's actually bad for it...i dont have any clue why it would be, if it's better oil.

[Flashmn]

thats fine. I use 5W40 on my car during winter and 5W40 on the E-series benz year round