What brand of oil do you use in your FC?
 

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. :)

:cool:

pennzoil 20w50 non synthetic...

only 20w50 that comes in cartons around locally

Castrol GTX 20W50 :D

....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...