The Great Oil Debate

Discussion in 'Mustang Chit Chat' started by fake, Dec 31, 2011.

  1. 46addict

    46addict 13726548

    Posts:
    1,243
    Likes Received:
    0
    Joined:
    Aug 25, 2016
    Location:
    Lawrenceville, GA
    The general justification for running a thicker oil in a boosted engine is if the compressor shares its oil supply with the engine and/or to maintain oil pressure during extended periods of high RPM. As in road racing or 10+ passes down the drag strip.

    All of this is speculation though unless you take two viscosity grades in the same engine and compare the overall analysis averages. I would also advocate staying with OEM oil recommendations and would only deviate from that if I was having oil pressure issues in the desert heat.
     
  2. MechE

    MechE forum member

    Posts:
    246
    Likes Received:
    0
    Joined:
    Jul 29, 2015
    Location:
    Southern CT
    Diggin up an oldie but goodie!

    It seems to be ALMOST universally held that Amsoil MTG is A good way to go for the MT-82. It was mentioned in post 88 (and probably others) that this was in fact Amsoil's recommended offering. However, checking the Amsoil site, it is no longer listed as a recommended fluid. In fact they don't list any recommended fluids for the MT-82.

    I'm comfortable using it considering the wealth of experience from this thread alone. However, it does beg the question... What happened? Is this a recent change from new learning?
     
  3. patriotu

    patriotu forum member

    Posts:
    50
    Likes Received:
    0
    Joined:
    Aug 30, 2016
    Location:
    ROMANIA, EUROPE
    amsoil or royal purple

    Hello,
    what s gonna do better for 08gt in your opinion ?

    amsoil or royal purple

    on manual transmission,gears and engine.
    i ve read a few coments about royal purple that is gonna eat gaskets on transmission?!?
     
    Last edited: Apr 20, 2017
  4. stkjock

    stkjock ---- Madmin ---- Staff Member

    Posts:
    35,964
    Likes Received:
    115
    Joined:
    Jul 10, 2007
    Location:
    Long Island NY
    both are good products
     
  5. 46addict

    46addict 13726548

    Posts:
    1,243
    Likes Received:
    0
    Joined:
    Aug 25, 2016
    Location:
    Lawrenceville, GA
    I don't know where the recent bad press on RP is coming from but Amsoil is always well reviewed.
     
  6. Boaisy

    Boaisy Dark Knight

    Posts:
    4,171
    Likes Received:
    0
    Joined:
    Dec 11, 2013
    Location:
    Memphis, TN
    Hit up Greg Hazlett for Amsoil stuff. RP isn't bad either, but I think the bad press comes from how it can discolor the components. Some people believe it is bad for the motor. I used Amsoil or I would buy RP if I couldn't wait on shipping.
     
  7. Greg Hazlett

    Greg Hazlett Stepping on the Pink Bus

    Posts:
    23,343
    Likes Received:
    20
    Joined:
    Nov 2, 2009
    Location:
    Chesapeake, VA
    Thanks Boaisy!
     
  8. Gabe

    Gabe Whippled Coyote

    Posts:
    6,044
    Likes Received:
    1
    Joined:
    Aug 7, 2011
    Location:
    NH
    Royal Purple or Mobil1, I wouldn't use in my lawnmower.

    I use Amsoil, I buy it direct from them, amsoil.com, I'm signed up as a Preferred Customer for $16/year and get great pricing that way, plus occasional promos with free shipping or whatnot.
     
  9. Boaisy

    Boaisy Dark Knight

    Posts:
    4,171
    Likes Received:
    0
    Joined:
    Dec 11, 2013
    Location:
    Memphis, TN
    :beerchug2:
     
  10. 46addict

    46addict 13726548

    Posts:
    1,243
    Likes Received:
    0
    Joined:
    Aug 25, 2016
    Location:
    Lawrenceville, GA
    Would you care to explain why?
     
  11. Greg Hazlett

    Greg Hazlett Stepping on the Pink Bus

    Posts:
    23,343
    Likes Received:
    20
    Joined:
    Nov 2, 2009
    Location:
    Chesapeake, VA
    I know at one point Mobil 1 was considered top shelf and was a factory fill for the higher end cars; I don't think the higher end cars use M1 anymore; at some point M1 changed their formula to be price competitive (selling at Wal Mart) so the quality dropped. Before I started using and selling Amsoil I did lot of reading about the differences between Amsoil and RP and Amsoil was the better product; you see instances of failures with engines using RP-I do take into account it's the internet and you never get the full story-failing and very seldom see Amsoil used engines failing.

    Some argue that as long as you change the oil every 3k it does not matter what you use but the mindset of changing every 3k is wasting time and money; the better oils of today are engineered to last longer.
     
  12. 46addict

    46addict 13726548

    Posts:
    1,243
    Likes Received:
    0
    Joined:
    Aug 25, 2016
    Location:
    Lawrenceville, GA
    There are still 8 manufacturers using Mobil1 as factory fill and recommending them through the vehicle's life. This is not to say the decision isn't based on a financial/political standpoint, but I'm sure product quality isn't total junk.
    https://mobiloil.com/en/article/why...car-manufacturers-recommend-mobil-1-motor-oil

    Do you think 3k mile oil changes are still a waste even for us guys who drive hard/race? Obviously this would be wasteful for higher end oils like Amsoil but I mean from a typical Group III standpoint. I'm not trying to start an argument, just wanting your opinions.
     
  13. Greg Hazlett

    Greg Hazlett Stepping on the Pink Bus

    Posts:
    23,343
    Likes Received:
    20
    Joined:
    Nov 2, 2009
    Location:
    Chesapeake, VA
    Gotcha, it has been a while since I looked so thanks for the info; when I had mustangs and drove them hard/raced them I used the racing oil which had more additives but lasted 6 months. Never cam close to the mileage on the oil but it was peace of mind.

    Can't go wrong with 3k oi changes, it is relatively cheap insurance, not even sure what the price difference is between dino/syn oil is...I do think syn is better.
     
  14. Boaisy

    Boaisy Dark Knight

    Posts:
    4,171
    Likes Received:
    0
    Joined:
    Dec 11, 2013
    Location:
    Memphis, TN
    I change mine every 5k in the truck, even though the computer is probably set to 10k (usually 50% "life left" when I go to change it). Since I some how keep getting free oil changes, without spending a dime at the dealer, I've been having them do it. If it was a regular old fuel saving DD car, I would let it stretch to 10k. Since my motor is turbo'd, I don't feel like I need to stretch it if the changes are free.

    If it was a car that I was tracking/abusing, I would be running something like Amsoil every 5k or less.
     
  15. ZmanM3

    ZmanM3 The Evil One

    Posts:
    21,591
    Likes Received:
    201
    Joined:
    Apr 6, 2007
    Location:
    Jackson, NJ
    My mustang every 3k, oil is cheap compared to the engine. I use amsoil in it. My 2011 F350 I do when the oil life monitor says to, so it generally varies between 5k and 9k depending on driving conditions. I just use the motor craft synthetic as it takes a bit over 3 gallons. Usually it's on the higher side unless I do a lot of short trip towing in traffic.
     
  16. slackinoff

    slackinoff Member

    Posts:
    687
    Likes Received:
    0
    Joined:
    Feb 14, 2016
    Location:
    East Texas
    I just did Wal-Mart supertech "highmilage". Since I change every 3k, I go with supertech. That oil gets good reports

    Sent from my LG-H910 using Tapatalk
     
  17. Five Oh Brian

    Five Oh Brian Mustang Guru

    Posts:
    1,680
    Likes Received:
    10
    Joined:
    Feb 28, 2010
    Location:
    Pacific Northwest
    5.5 years since you asked this, and the answer is still "no."
     
  18. IFlyEm

    IFlyEm Junior Member

    Age:
    36
    Posts:
    20
    Likes Received:
    0
    Joined:
    Oct 1, 2017
    New to the Mustang world. What oil would you recommend for my 2011 GT? If it matters, I live in Las Vegas.

    Sent from my SM-G955U using Tapatalk
     
  19. pass1over

    pass1over I like it LOW

    Age:
    37
    Posts:
    807
    Likes Received:
    0
    Joined:
    Oct 9, 2011
    Location:
    Trenton, FL
    i've ran what the manufacturer has recommended for the life of my car (2012 GT bought new) and never had a problem.
     
  20. IFlyEm

    IFlyEm Junior Member

    Age:
    36
    Posts:
    20
    Likes Received:
    0
    Joined:
    Oct 1, 2017
    And that's Motorcraft Synthetic Blend? One of my friends told me to run nothing but full synth...he's a BMW guy

    Sent from my SM-G955U using Tapatalk
     

Share This Page