OIL and fluids FOR THE TRACK

Discussion in 'GT350 and S550 Technical Forum' started by flyhalf, Jul 9, 2018.

  1. flyhalf

    flyhalf TMO Advanced

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    Hello gents.

    I have a question about the topic above.
    I'd need more info on the following items:
    1.engine Oil . 5w50 MOTUL? what is the right quantity?
    2.Transmission Oil. 10 speed auto .what is a better Oil ( looking for drop some F ).? quantity?
    3.axle back oil ( perf pack). ANy better option ( again for the temp?) quantity?

    Please let me know your thoughts!

    Alex
     
  2. CompetitionMotorsport

    CompetitionMotorsport What you need, when you need it, no excuses.

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    What car do you have specifically?
     
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  3. flyhalf

    flyhalf TMO Advanced

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    Gt 18 pp1

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  4. byronj

    byronj TMO Addict

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    1) The right quantity is going to be in the owners manual or the supplement
    2) How much F do you want to drop? what are you currently running and is that on the street or track?
    3) See #2.

    Basically what you want to ensure is that the fluids you use are up to Fords specs because if your under warranty and you're using a fluid that doesn't meet or exceed the specs you might be at a loss there. If you're looking at losing a bit of F then you need to look into external coolers as well.

    Man I just realized I need to change my avatar. HAHA
     
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  5. flyhalf

    flyhalf TMO Advanced

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    Is weekend car and track days.
    The bigger drop the better.
    Yes I'm considering additional cooler system but before that I'd like to see what happen with different fluids.

    5w50 is what i hear a lot (i think the 350 run it) for engine oil.

    Don't know the way the trasmission is cooler. ( still new with this car)

    First thing. I'm putting motul 600 for the brakes.

    Fly

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  6. flyhalf

    flyhalf TMO Advanced

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    I saw a cooler for the differential.
    Didnt see anything fornthe 10 speed auto yet

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  7. byronj

    byronj TMO Addict

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    its probably too new and Ford Performance hasn't had the need to make one yet.
     
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  8. CompetitionMotorsport

    CompetitionMotorsport What you need, when you need it, no excuses.

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    1. Your oil capacity (including filter) is 10 quarts. Going to a 50-weight oil for track duty will work, but that's fairly heavy for daily street use in an engine designed around 20-30 weight oil use. A good 30- or 40-weight oil is a better idea. We use Driven oil in all of our track-day and race cars. The street/track oils have HTHS numbers significantly higher than Motul, Mobil1, etc. as they are designed around racing oil base stock. The ability of an oil to resist high temperature shear, and to provide a non-film lubricant barrier when the going gets really hot, is more important than the weight. Oil is one of those things that the internet will argue over ad infinitum. Not trying to sell you on oil (we do sell Driven as a convenience/service to our customers), just telling you what we've learned.

    2. Ford Transmission Fluid is your best bet. No fluid is going to lower temps significantly, if at all. For that you need a cooler.

    3. We've had the best luck in rear diffs and transaxles with Amsoil 75W-90 Severe Gear. We see less wear and longer oil change intervals on everything from track day to race cars. (We don't sell Amsoil.)
     
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  9. flyhalf

    flyhalf TMO Advanced

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    Thanks for your reply.
    Really appreciate your advice.
    I'll take a look on the differential and the engine oil.
    Alex

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  10. BigTaco

    BigTaco TMO Addict

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    You ever try Driven Racing rear oil in customer cars? Results?
     
  11. honeybadger

    honeybadger TMO Intermediate

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    I'd recommend Castrol SRF over Motul. I boiled the Motul at Sonoma. The SRF has been amazing so far. The price difference isn't as big as it appears when you consider that the SRF bottle is twice the size.
     
  12. flyhalf

    flyhalf TMO Advanced

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    I used castrol all my life.
    To t ry somenthing new :)
    And also i see somewhere people saying castrol is an overkill for what we do. ..

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  13. flyhalf

    flyhalf TMO Advanced

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    And you are right tho. I shoulf go with castrol

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  14. honeybadger

    honeybadger TMO Intermediate

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    I know the desire to look for better things. I REALLY do :)

    Sure seems hard to complete with the SRF for us mere mortals
     
  15. VoodooBoss

    VoodooBoss Rick Moderator

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    How about Endless brake fluid?
     
  16. flyhalf

    flyhalf TMO Advanced

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    Boss do you have experience with their pads?

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  17. VoodooBoss

    VoodooBoss Rick Moderator

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    Only their brake fluid.
     
  18. flyhalf

    flyhalf TMO Advanced

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    A bmw guy is very happy qith them on track. Just checking

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  19. Competition Orange

    Competition Orange TMO Advanced

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    I've used both Endless and Castrol SRF in my 2015 GT PP and noticed no difference. The car was running Pirelli DH slicks, and either Gloc R16 or Ferrodo DS1.11 pads.

    I've switched to Castrol SRF due to cost, and the higher wet boiling point considering my experiences above. I haven't switched over the GT350 yet, but will use SRF.
     
  20. steveespo

    steveespo Lord knows I'm a Voodoo Child Moderator

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    Castrol SRF, BG SynchroShift II in MT-82 transmissions, Millers Oils CRX 75w140 rear axle lube and Motul 5w40 300V Competition Engine oil. Zero failures on any of these systems with over 22000 combined track miles on my 2011 Mustang GT, 2016 Mustang GT PP1 and my 2018 Mustang GT PP2 cars. And the original engine from my 2011 is still running strong and winning races in Captain Distraction's ST2 Mustang race car.
    Steve
     
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