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What brand of oil do you use in your FC?

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Old 07-14-03, 06:04 PM
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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...
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Old 07-14-03, 06:10 PM
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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
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Old 07-14-03, 06:23 PM
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Same as RXmfn7 - Castrol GTX 20-50
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Old 07-14-03, 06:24 PM
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castrol gtx 20w50 also
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Old 07-14-03, 06:28 PM
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Following the trend here, GTX 20w50
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Old 07-14-03, 06:32 PM
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You can use Mobil 1 not a problem. I use Mobil 20-50 non-synthetic in the summer and 10-30 in the winter.
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Old 07-14-03, 06:33 PM
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Big surprise here, I use Castrol GTX 20W-50, and have ever since I owned the car.
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Old 07-14-03, 07:08 PM
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i use valvoline racing formula 20w-50. i'm pretty sure it's not synthetic.
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Old 07-14-03, 07:20 PM
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Castrol GTX 20W50 most of the year, and Castrol GTX 10W30 in the dead of winter
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Old 07-14-03, 07:24 PM
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castrol gtx, 20w50...

noticing a trend....?
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Old 07-14-03, 09:34 PM
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Mobil 1 15W50
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Old 07-14-03, 09:49 PM
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castrol gtx 20w-50.... hmmm
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Old 07-14-03, 09:49 PM
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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
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Old 07-14-03, 10:08 PM
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like IceMark 20w-50 the entire year except for winter when I use 10w-30, and like the rest it is GTX
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Old 07-14-03, 10:24 PM
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castrol gtx 10w30
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Old 07-14-03, 10:29 PM
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Castrol GTX 20W50 and Castrol GTX 10W30 in the winter.
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Old 07-14-03, 10:30 PM
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Castrol GTX 20w-50. I feel trendy.
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Old 07-14-03, 10:44 PM
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mobil 1 10w-30
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Old 07-14-03, 10:46 PM
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MOBIL 1 10W 40 It works very well.
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Old 07-14-03, 10:51 PM
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Originally posted by Icemark
Castrol GTX 20W50 most of the year, and Castrol GTX 10W30 in the dead of winter
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Old 07-14-03, 11:22 PM
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pennzoil 20w50 non synthetic...

only 20w50 that comes in cartons around locally
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Old 07-15-03, 12:15 AM
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Castrol GTX 20W50
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Old 07-15-03, 12:21 AM
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....well...you guessed it....

Castrol GTX 20W50

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Old 07-15-03, 12:23 AM
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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



Originally posted by darkwaveboi
pennzoil 20w50 non synthetic...

only 20w50 that comes in cartons around locally
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Old 07-15-03, 12:24 AM
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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...
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