edm

- Do you guys have any recommendation on what type of oil should I use for a 93 968 with 80k on it, Synthetic or Dino?,10-30, 15-50?.

Thanks

BruceWard

Mobil 1, viscosity will vary by weather conditions. We have lots of people from New Jersey on here so they should be able to tell you soon.

Jason Judd

I've always used Mobil 1 15/50 weight.

Jason

BAN968

My 93' has had Mobil 1 15/50 since it's first oil change. Changed every 10,000 miles and now has just over 150K miles and runs perfect.

flash968

dave greimann is the guru on oil - there is an extensive amount of information he has provided over on 968.net - there you'll find the correct recommendation based on your climate and driving style

edm

Thanks to ALL for your replies..

BruceWard

Not sure where Dave is at, he normally replies over here pretty quickly but I use 15/50 here in Arkansas. We have snow for a couple of weeks in the winter when I do not drive the car and 100+ in the summer. I think you may want to consider something lower than 15 for the New Jersey winters but 15/50 would great for the summer.

Our cars do have a valve lifter issue with too thin oils though. Dave should reply before winter (hopefully).

Greimann

Hey 'yall catching up on some paperwork .

Basically you only need to worry about the W portion of the viscosity grade in the dead of winter (hence - W). 0W or 5W for the Northeast or Frostbite Fallls MN whenever the temp is below 0F. In spring - summer 15W to 20 W is fine. The back number should always be 40 or 50. Pick the one that keeps the lifters and vairocam happy (ie .. no ticking or funky behavior). Believe it or not, a 20W-50 is a good grade for 32F+ climates. Viscosity varies on a logarithmic scale. It is not llinear. Colder temperatures are critical for oil formulation to enable flow. That is where the grade selection is important. Operating temperature is always going to be 190 to 220 deg F in winter or summer so the back number is a no-brainer.

RajDatta

I am in NJ as well and I use 15W50. Being that the car is turbo-charged, it sees more heat than a standard 968 and the oil viscosity has worked great for me.
Maybe you should join us for our next run. We have quite a few 968 owners here.
Regards.
Raj

RL911

Resurrecting an old thread. I have been using 15w/50 Mobil 1, but it seems that it is no longer being sold locally; Walmart and Advance Auto don't carry it. I can get it on line, but it's $10 a quart compared to $22 for 5 quarts when walmart had it. My 968 is predominantly tracked and I live in the Northeast, but don't track beyond November and don't start until March and it's not driven much on the street.

What is(are) appropriate alternative oil weight(S)?

Lemming

I run Rotella 15W-50 in my daily driver year round but I do live in the South. For the race car, I have started using only racing oils to get rid of detergents; I don't want frothy oil while on track!. Currently using Amsoil Racing Synthetic in 15W-40 and have used Redline as well (40W). I know, many will complain that Amsoil is snakeoil, but I used it for years in my offroad race bikes and it worked well in that very harsh environment.

Todd951968

I used to use Mobil 1 but when they changed their formula and started using less (or no) zinc I went to Redline 15w-50 for synthetic and Valvoline VR1 for dino. I've been looking for BradPenn, too, but its hard to find.

odurandina

not exactly true for all Mobil 1 Todd, as i learned in the oil war threads.


on the cold weather "0w" formulas there's plenty of the good stuff in there. if you run Mobil 1 15w-50, they left the max ZDDP in there,


as it is a euro-engine/P-car spec oil.

https://rennlist.com/forums/968-foru...ite-oil-3.html see post # 42