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Synthetic Oil

Discussion in 'Engine & Performance' started by mcclintock89, Feb 7, 2013.

Oil of Choice

  1. Castrol Syntec/Edge

    158 vote(s)
    8.7%
  2. Royal Purple

    241 vote(s)
    13.2%
  3. AMSOil

    262 vote(s)
    14.4%
  4. Valvoline Synpower

    100 vote(s)
    5.5%
  5. Mobil 1

    680 vote(s)
    37.3%
  6. Other

    381 vote(s)
    20.9%
Sponsored By: Moe's Performance
  1. joshuaeb09

    joshuaeb09 Senior Member

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    That depends on the oil and how its going to sheer as well as the engine it's going in. For my 5.7 with its 180 T-Stat it really likes the ~12 CST of Redline 5W30 or PUP 0W40 once it sheers down. The oil does run a bit colder at around 195 empty so it's going to be a touch thicker than the advertised hot visc at 212. The 6.4 being an SRT has higher compression (10.9:1) and gets hot once it's been worked so the ~15.5 CST of the RL 0W40/5W40 works well there since the oil is usually right around 210 with a 180 T-Stat and can get up to 240-250ish when it's being pushed for a while.

    Since the 6.4 truck configuration has that 216 T-stat I would probably shoot for around the same, taking into account how much the oil will sheer during the OCI. If it's under high loads then the thicker rated oil, again in that 15 range, will thin out a bit at elevated oil temps and maintain better protection.
     
  2. grizzstang

    grizzstang Senior Member

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    I would be interested to hear what "noticeably better performance" means, if it is 2/10ths of a second in the quarter mile I don't care too much. I have iridium plugs in my truck and it runs great. I would prefer to not plank across my engine for a few hours every 30,000 miles to replace them. I am pretty sure I can find something better to do.
     
    cnitty, AFMoulton, Zack02 and 2 others like this.
  3. U&A

    U&A Senior Member

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    I see it as a chance to see inspect the condition of each cylinder. Spark plug tells a lot. And if your going to pull the JUST to do an inspection than why not replace them at the time anyway.

    100,000 miles..... or even 80,000 mils is a LONG time.


    Sent while firmly grasping my redline lubed RAM
     
  4. U&A

    U&A Senior Member

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    When he says the word performance I don’t think he means faster times on a track I think he’s talking more along the lines of idling characteristics and efficiencies.




    Sent while firmly grasping my redline lubed RAM
     
  5. U&A

    U&A Senior Member

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    Im not saying platinum and iridium are not good. They are GREAT !

    just a different purpose. And arguably some of the harder metal plugs COULD perform better.... some say

    Its kinda like arguing about the big 3. ... they all have their good and bad qualities


    Sent while firmly grasping my redline lubed RAM
     
  6. U&A

    U&A Senior Member

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    REDLINE RACING oil is blue-ish / green..... The smell is basically identical to blue label Redline: so I’m wondering if the color is from the high Molly and ZDDP..... and hopefully calcium

    [​IMG][​IMG]


    Sent while firmly grasping my redline lubed RAM
     
  7. HammerHead

    HammerHead USMC 0313

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    The one time I ran Schaffers 5w30 it was the same color. Greenish Blue!
     
  8. HammerHead

    HammerHead USMC 0313

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    I agree, I put 24k on my new 6.4 in one year of ownership. Glad I can wait a little longer; manual says 100k but I’ll be doing them at 50k.
     
  9. Burla

    Burla Senior Member Military

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    I don't want to open a bag of worms, oops too late, but what I wonder is if their HP line is actually dyed amber to look like oil. If so that would be funny, RP dyes their oil to look synthetic, and redline dyes their synthetic to look like oil. Ha, no I have zero info on this, I just wondered about it.
     
  10. Burla

    Burla Senior Member Military

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    um for my favorite terd Hunter and his type that run the PUP, it's on sale under 20 bucks 5 qrt amazon. Well dang, that is what I run in the wife's car, maybe I'll terd up too.

    The sale might end today, this is the end of prime days thier new black friday type thing.
     

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