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View Poll Results: What oil do you use in your engine to protect it?

285. You may not vote on this poll

    28 9.82%
  • Mobile 1

    111 38.95%
  • Castol syntech

    18 6.32%
  • Valvoline SynPower

    24 8.42%
  • Pennzoil Platinum

    22 7.72%
  • Kendal

    2 0.70%
  • Castrol GTX

    26 9.12%
  • Royal Purple

    12 4.21%
  • Quaker State

    14 4.91%
  • Other?

    28 9.82%
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Results 11 to 20 of 75
  1. #11


    I've used Quaker State synthetic for a long time now in my truck. I use mobil 1 in my vette.

    2001 Chevy Silverado w/6" Procomp lift
    1990 Corvette ZR-1
    2006 Yamaha Apex snowmobile

  2. #12


    Castrol GTX - have used it for years. Good enough for John Force (I'll let his penchant for Fords pass), good enough for me!
    Brion G. - Dallas, TX
    '87 Chevy Suburban 3/4t 4x4 Scotsdale

  3. #13
    TRPLXL2's Avatar
    Join Date
    Jan 2009
    Norwalk, Ohio
    Blog Entries


    Pennzoil 5w-30 in the trucks, and my dad uses Castrol GTX full synthetic in his street rods.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  4. #14
    Jr. Apprentice
    Join Date
    May 2009
    mason michigan


    I voted Valvoline syn but I actually use Valvoline MaxLife Syn blend on my 350 95 suburban Its has been excellent I have 360,000 miles and used it for the last 100,000k

  5. #15
    Jr. Engineer SoCal Chevy's Avatar
    Join Date
    May 2009
    Ventura County, SoCal


    i actually dont know whats in my truck rite now.....i guess what ever gm dealers put in when you buy it. im doing my own oil change this weekend and i think im gunna go with mobil 1 cause thats what my mom has in her benz, its what my dad has in his lotus and its what my friend jhonny hass in all his prerunner trucks
    ____Zybe the Zebra
    '07 NBS Silverado 1500 Crew Cab LT1, 2wd, 4.8L
    :fighting0040:<--- (this is cool!!!)
    Custom 3in exhaust with Magnaflow muffler
    18in American Racing atx series thug's with 33 inch BFG A/T's
    N-Fab Nerf steps
    Blacked out rear wheel wells
    Rugged Liner bed liner <came with the truck>
    Pro Comp Leveling kit
    LED Glow 7 color underglow and interior glow kits

  6. #16
    Jr. Apprentice
    Join Date
    May 2009
    San Diego, CA.


    I have used Pennzoil 10w30 in all my vehicles and never had a problem.
    Coming to a garage near me:
    2009 Silverado LT Ext. Cab 4x4 Texas Edition

  7. #17


    Lifelong Amsoil user here. My dad still has a container from when it used to be sold in a can!

  8. #18


    Quote Originally Posted by ohmybowtie View Post
    Lifelong Amsoil user here. My dad still has a container from when it used to be sold in a can!

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  9. #19
    Jr. Mechanic
    Join Date
    Jun 2008
    South Carolina


    I first used Mobile 1 in 1980 and with the old corkgasket system could not keep it in engine but I immediately recognized the superior qualities of synthetic lubricants as to how easy I could crank off a 390 Ford at -10F.
    Then I guess it was 86 I started running it in one vehicle at that time, then another and now I have put about 675K on several vehicles with it running it 15K or more between changes. Have not had the first bit of engine problems since that time.
    We now have three pieces of rolling stock with a combined mileage of 448K. I also have it in a International 140 tractor, Honda generator, Honda lawnmower, weed trimmer and use it to lube my guns and clean the gas systems on the semi autos.
    I also use it in my electric motors that have lube ports. I started this in circa 1991 when I talked with a electric motor rebuild facility in Columbus, Ga. They told me to run Mobile 1 as they put it in all their rebuilt motors and had never had one returned for failure with Mobile 1 run therein.

    I have about 80 quarts of it laid in. I run 10W30 even though the new engines say 5W, the manuals also say 10W is fine so it will continue to run it.

    Should I get another vehicle and the manual calls for 5W only, then I guess I will switch but I suspect that may be a litte or long while now and whatever it is I can assure everyone the next vehicle I purchase will not have been touched by a UAW worker.

  10. #20
    Jr. Apprentice
    Join Date
    Feb 2009
    Where Uncle Sam sends me (currently Lawton, OK)


    Royal Purple in all three: 98 Blazer w/180k, 03 TB w/100k, and the Harley with 10k.
    '03 Trailblazer
    '04 Colorado Z71
    Previous Chevys: '89 & '91 S-10 Pickups, '98 S-10 Blazer

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