Rotary Car Club - What kind of oil do you use?

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Rotary Car Club (https://rotarycarclub.com/index.php)

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- - What kind of oil do you use? (https://rotarycarclub.com/showthread.php?t=1826)

My5ABaby

10-09-2008 10:39 AM

Quote:

Originally Posted by SpooledupRacing (Post 51068)

well when u drop 6K or more on a motor spending 40.00 ever couple months to change the oil is a small price to pay for added protection..

remember it cost money to play the game..

how much do u want to spend?

Now dont get me wrong I have no problem with conventional oil.. if I used it I would use GTX thats my preference.. HOWEVER IMO the synthetic oil is a better oil and its not that much more in my eyes.

I guess I'm speaking from an S4 N/A perspective. I spent a total of about $1000 to have my engine rebuilt so it seems foolish to spend that much on oil. However, if I had an engine with new housings/plates/etc., I might justify the synthetic.

SpooledupRacing

10-09-2008 10:48 AM

Well honestly there is people who will drop 10G into an engine and still wont use synthetics and thats ok again oil will ALWAYS be about choice..

I use it because I think ANY engine will benifit from it thus why I added it to my 220K bmw, my wifes 150K jeep and I will use it from the begining in my turbo rotary engien when I am done..

hell I used it in my n/a engine.. at 70K it was well worth it. IMO

classicauto

10-09-2008 12:14 PM

I'm a conventional man myself. For me, putting out 400whp my oil gets dilluted with gas FAR FAR before the oil ever reaches its useable life span in mileage. I change it roughly every 2000kms.

10-30 at the start of the season, 20w50 in the peak of summer, 10w30 in the fall.

IMO, once you get much above stock power and are injecting a little more then stock fuel, your oil will be contaminated very fast. Whether you do $45-50 dollar synthetic chnages, or $15 dino changes the oil gets gassy either way and needs to be changed....so I opt for the cheaper of the two options.

EDIT: its also just carquest brand oil since I deal alot with them. I also use their oil filters which are carquest badged WIX filters.

IH8DSM

10-09-2008 03:00 PM

gtx 20w 50 year round

TehMonkay

10-09-2008 07:57 PM

I'm sorry, it is 15-w40

Quote:

Originally Posted by C. Ludwig (Post 2062641)

I recommend either Shell Rotella or Chevron Delo. Both are available in a 15-40w. A while back zinc was removed from all "automobile" engine oils. Zinc is a major part of the additive package that helps protect engine against wear on sliding surfaces. Mostly you think of cam lobes and followers. In a rotary engine there is a high amount of surface are that slides (ie, apex, side, corner seals, oil seal steels). Many, many professional engine builders and hobbyists have seen what can happen as a result of new auto oils not having the same additives as they had just a few years ago. The catch to all this is that "diesel" oils still have the zinc in their package. I've been running Rotella for years without issue. Both the standard and synthetic formulas. If you still have the OMP connected then you'll want to stick with the non-synthetic.

From Chris Ludwig, that's why I started using it.

FortyfiveD

10-09-2008 08:42 PM

15w40 Castrol GTX for daily, Motul 15w50 Competition Oil for the track, Redline light shock and heavy in the trans and rear diff.

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