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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 21 to 30 of 75
  1. #21


    Valvoline Maxlife 5W-30 Full Synthetic.....A/C Delco Filter......I Change at 4000-4200 Miles
    Last edited by 99'HEARTBEAT; 06-05-2010 at 04:14 PM.


    5.3 l 3.73 l G80

  2. #22


    Jumped on board with amsoil this change.
    2002 Chevrolet Silverado 1500 z71 1985 Chevrolet Silverado k10 2006 Chevrolet Silverado 2500hd 6.6l LLY Duramax
    6.5" BDS Suspension Lift Edelbrock Carb & Polished Intake Manifold & Valve Covers NAPC Race Transmission & NAPC Built Transfer Case
    EFI Live Comp Cam and Valvetrain Snow Performance Methanol Injection
    35" Toyo Open Country Mud Terrain on 18" Ion Alloy 179's Headman Long Tube Headers and True Dual Exhaust FASS 150gph Titanium Series Pump
    AirAid Cold Air Intake with K&N Dry Filter & AirAid PowerAid Throttle Body Spacer 2" Suspension Lift 33x12.50r15 Tires EFI Live & AFE Stage 2 Intake
    Pacesetter Long Tube Headers with Cats Gone True Dual Exhaust FlowPro 3.73 Gears Yukon Grizzly Locker with Mag-Hytec Cover & Traction Bars
    NGK Iridium Tips & MSD Ignition Plug Wires Baja Spare Tire Holder 33x13.5 Hankook rt03 18" XD Rims
    Innovate LC-1 Wideband o2 Sensor x2 HID's all around LED taillights and 3rd brake light
    BDS Dual Steering Stabilizers Pioneer Double-DIN Touchscreen Navigation with Two 10" Subs under rear seat
    Electric Fan Autometer Pressure, Boost, and Pyro Gauges
    4.56 Gears Airlift Air Bag Suspension

  3. #23
    Legend 2ToNe04's Avatar
    Join Date
    Apr 2009
    Fresno California
    Blog Entries


    royal purple, works best for me.

    2004 4.8| Custom Paint| Tint| De-badged| Shaved Tailgate| Rollpan| Smoked Tails| Color Matched| Lowered 5/8| Suede Interior| Color Matched Interior| Indash & TVs| Mids-Lows & 2 12" CVRs| 500 & 1100 Interfires| Soundeadener| Outlaw CAI| Magnaflow|
    Future Mods: 6.0 LQ4/9| Bags|

  4. #24


    I've been using Mobil 1 in all my vehicles now for quite some time. It's not too terribly expensive and it's fairly easy to find.

    And speaking of which i need to change the oil in my truck.
    2004 Chevy Silverado Z71
    5.3L V8
    61k'ish miles
    Red Extended Cab
    The workhorse

    1999 Mercury Cougar
    2.5L V6
    60k'ish miles
    Pearl white with black racing stripes
    The bitchy younger step-brother

  5. #25


    I was using the baisc Penzoil 5w-30 Motor oil. Switched to Mobil1 I love it but im gonna jump boat to Amsoil... I still got 4500 miles to my next oil change thou
    2000 GMC Sierra Ext. Cab 5.3L

  6. #26
    Jr. Mechanic
    Join Date
    Jun 2008
    South Carolina


    I have just begun to see the purple in just a few places but understand it is good as well as Amsoil. I am not aware of any synthetic having a bad reputation insofar as that goes.

  7. #27


    Quote Originally Posted by Hummer View Post
    I have just begun to see the purple in just a few places but understand it is good as well as Amsoil. I am not aware of any synthetic having a bad reputation insofar as that goes.

    Oh you would be surprised at some oils. I would not use the Purple stuff, go with AMSOIL or even Mobil 1. That purple stuff breaks down real fast and you lose all your protection. They recently just got sued by BP for false adverting also. They can't back up any of their claims the use in advertising. Just trying to save you some money down the road by giving you a heads up.
    2008 GMC Sierra 2500HD Ex. Cab, Fire Red, 6.6L Duramax LMM Equipped with UTG Rocker Pods

    AMSOIL is the only oil company that...,"Recommends 25,000 mile oil changes","Gives up to four times better wear protection","Warranties your engine against oil related failure"

    Preferred Customers Save up to 30% Click here!!!
    Executive Direct Jobber ZO# 1695636
    Scott Douglass 248-721-1002
    Order online:

  8. #28


    Valvoline DuraBlend or conventional

    I change oil every 3000-3500 miles. Full Synthetic is a little more than I want to shell out... Durablend is my happy medium. (Yes I know synthetic is probably better....and i can get away with more miles between changes. ;- )

  9. #29


    AMSOIL 5W-30 truck and car.....

    06 Red GMC 4X4 CrewCab 4.8L
    MagnaFlow Muffler
    Lubed by AMSOIL...

  10. #30


    I use Mobile 1 in all my rigs...

    Marty-Vancouver, WA
    04 Tahoe 5.3L
    48 Chevy Coupe 5.7L
    04 Sierra Denali 6.0L

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