Hey, I'm wondering what oil you guys use -- now I know that there was a thread about the weight of oil, but which type? I was thinking of going with the 10w-30 Mobil 1 for my n/a...

 

Mobil 1 is synthetic, my personal opinion is to stay away from synthetic for rotaries. Many will argue this, and many use it with good success, but thats just my opinion. I personally use Castrol GTX 20w-50.

Also, there have been many threads on this subject, you might want to read through them..

https://www.rx7club.com/forum/showth...light=what+oil

 

Same as RXmfn7 - Castrol GTX 20-50

 

castrol gtx 20w50 also

 

Following the trend here, GTX 20w50

 

You can use Mobil 1 not a problem. I use Mobil 20-50 non-synthetic in the summer and 10-30 in the winter.

 

Big surprise here, I use Castrol GTX 20W-50, and have ever since I owned the car.

 

i use valvoline racing formula 20w-50. i'm pretty sure it's not synthetic.

 

Castrol GTX 20W50 most of the year, and Castrol GTX 10W30 in the dead of winter

 

castrol gtx, 20w50...

noticing a trend....?

 

Mobil 1 15W50

 

castrol gtx 20w-50.... hmmm

 

vavoline 10w30 is what i use but i'm thinking about going to the racing formula for better protection in my higher miler, vavoline is a liquid base oil not like castrol which is powder base and will cake up when it is extremely over heated dont get caught in the trend

 

like IceMark 20w-50 the entire year except for winter when I use 10w-30, and like the rest it is GTX

 

castrol gtx 10w30

 

Castrol GTX 20W50 and Castrol GTX 10W30 in the winter.

 

Castrol GTX 20w-50. I feel trendy.

 

mobil 1 10w-30

 

MOBIL 1 10W 40 It works very well.

 

 

pennzoil 20w50 non synthetic...

only 20w50 that comes in cartons around locally

 

Castrol GTX 20W50

 

....well...you guessed it....

Castrol GTX 20W50

 

WOOT go pennzoil

and for that exact reason, I can't find non-synthetic 20w50 ANYWHERE aside from pennzoil.

It's nice and cheap too.. if only I could get it in 4l instead of just 1l

 

on that note, is 15w40 thick enough? Because I can get rotella 15w40 in nice BIG containers that work out to being way less than pennzoil costs me.

And rotella is quality stuff...