View Poll Results: What weight oil are you running?

Voters
90. You may not vote on this poll
  • __W-20

    8 8.89%
  • __W-30

    56 62.22%
  • __W-40

    12 13.33%
  • __W-50

    14 15.56%
  • Other

    0 0%
Multiple Choice Poll.
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Thread: what weight oil are you running??

  1. #16
    Join Date
    Sep 2006
    Location
    Lower Westchester, NY
    Posts
    1,428
    i switch back an forth from RP & Mobil 1 5w30. but im gonna start using Amsoil come JAN.

  2. #17
    Join Date
    Sep 2006
    Location
    Lower Westchester, NY
    Posts
    1,428
    Why???.....

  3. #18
    Join Date
    Jan 2006
    Location
    Broad Run VA
    Posts
    486
    AMSOIL 5W-20 Dominator Racing Oil.
    Red 94 5 Speed
    1 of 722

    2014 Carlisle 3rd Place Winner, 94-95 SCs
    2013 Carlisle 1st Place Winner, 94-95 SCs
    2012 Carlisle 2nd Place Winner, 94-95 SCs

  4. #19
    Join Date
    Jul 2003
    Location
    Eastern (nee Western) PA
    Posts
    4,988
    People who know use Valvoline.

    I usually use Valvoline 10W30 in the summer. No real reason. It just seems to be a good combination of price and quality. I have never owned a car since new, or even a fully rebuilt engine, so I haven't felt a strong need to go with a full synthetic. If I rebuild the entire engine, maybe I will switch over.
    God bless!!!

    1990 SC auto ... red outside, gray cloth inside ... ~205,000 miles (and climbing) ... driven daily!

  5. #20
    Join Date
    Feb 2003
    Location
    Phildelphia, PA 19030
    Posts
    2,181

    Cool good mix

    Quote Originally Posted by J dot Miller View Post
    I use 10w40 Royal Purple in the summer. If I ever raced I would try 5w50.
    same thing

  6. #21
    Join Date
    Apr 2002
    Location
    St. Charles, MO
    Posts
    20,889
    I'm using 5w40 Valvoline full synthetic on the current 4.2 motor. In the past I was using 20w50 Valvoline race oil, but when tearing the motor down Dave Dalke found that the wrist pin bushings were pretty hammered, and thought it was probably from the oil being too thick. I've also added a mechanical oil pressure gauge under the hood to check pressure at cold start up and hot idle every once in a while.

    David
    Last edited by David Neibert; 04-14-2012 at 09:39 AM.
    1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
    2016 SRT Challenger Hellcat...............707HP/650TQ

    My Garage

  7. #22
    Join Date
    Apr 2002
    Location
    Home of the Whopper
    Posts
    3,415
    15w50 Mobil 1 Synthetic in my 3.8.

  8. #23
    Join Date
    Jul 2002
    Location
    Manchester, NH
    Posts
    2,064
    I just rebuilt my engine 500 miles ago. I broke it in with 5w30 motorcraft semi synthetic. I want to change the oil this weekend to get out all of the prelube, etc. that goes with a new rebuild. I think I am going to start running full synthetic. Has anyone had any issues doing this on a fresh motor?

  9. #24
    Join Date
    Jan 2006
    Location
    Broad Run VA
    Posts
    486
    Quote Originally Posted by 90sc35thann View Post
    I just rebuilt my engine 500 miles ago. I broke it in with 5w30 motorcraft semi synthetic. I want to change the oil this weekend to get out all of the prelube, etc. that goes with a new rebuild. I think I am going to start running full synthetic. Has anyone had any issues doing this on a fresh motor?
    You will be fine with the full synthetic. Synthetics from the major oil companies which are petroleum base stock oils.

    You would even be good with the AMSOIL Signature Series oil too.
    Red 94 5 Speed
    1 of 722

    2014 Carlisle 3rd Place Winner, 94-95 SCs
    2013 Carlisle 1st Place Winner, 94-95 SCs
    2012 Carlisle 2nd Place Winner, 94-95 SCs

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