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  1. #1
    Member SLP02SS's Avatar
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    02 Camaro SS S.O.M.
    07 Trailblazer SS AWD

    mobil 1 or royal purple?

    My SS has had mobil 1 in it since birth lol, i went to the local pepboys and saw they carry royal purple now, before i had to go to summit or pace performance...well anywyas its only 70 cents more a quart than mobil 1 now because they raised mobil 1 to 6.29 a qt. royal purple is 6.99 a qt.

    so should i change to royal p or stay with mobil 1??

    02 som SS #4818 m6 all SLP options, cme, lt's, ory, e-cutout, lowered(slammed), Pro 5.0, 4:10s, boltons, 19" CCW 505A'S, 365rwhp 379ftlbs
    07 silverstone TBSS matching SS hood, cai, exhaust, HP tuners, DJM/Beltech, DAILY DRIVER

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Neither.
    Both are WAY too expensive. Mobil 1 isn't even fully synthetic anymore.


    That new Pennzoil Platinum is supposed to be a great synthetic.

  3. #3
    NATRALLY ASPIRATED 495 HP TASWEET SS's Avatar
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    pull me over RED
    2002 camaro SS

    stay with mobile one, and they still sell 5w 30, fully synthic, that new 5k mile shit is conventual oil by mobile 1, i get mine at auto zone aka abby

  4. #4
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by TASWEET SS View Post
    stay with mobile one, and they still sell 5w 30, fully synthic, that new 5k mile shit is conventual oil by mobile 1, i get mine at auto zone aka abby
    Mobil 1 is NOT fully synthetic anymore.

  5. #5
    NATRALLY ASPIRATED 495 HP TASWEET SS's Avatar
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    pull me over RED
    2002 camaro SS

    bullshit what makes you say that

  6. #6
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    The fact that they use a Basestock III now instead of the synthetic basestock IV.

    Mobil 1 is still a GREAT oil. Just not worth the asking price. Should be more like $2.50-$3 a quart instead of $6+ a quart.

  7. #7
    NATRALLY ASPIRATED 495 HP TASWEET SS's Avatar
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    pull me over RED
    2002 camaro SS

    they claim nascar uses it, who knows, i usually stick to one oil in my ss, i dont change up, old school i guess, i dont let my oil get dirty, clean, clean, always had mobile 1,talking about cost,rp xtreme is $12 something a qt, its all over priced

  8. #8
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    I use VP synthetics.
    $55 bucks for a 12 quart case shipped.

    Daily driver will get the rest of the Mobil 1 I have sitting around.


    Dirty oil is a good thing.
    Means it is working. Dirty doesn't mean it needs changed.

  9. #9
    Junior Member
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    black ws6
    2002

    mobil 1. thats what the manual says.

  10. #10
    Retired NOT tired SteveC's Avatar
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    SOM
    2001 Z28 (Sara)

    Royal Purple and Redline are pure synthetics.

    I use Royal Purple 10W-30, I live in a very warm climate.

    SteveC

  11. #11
    Member svt_eater's Avatar
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    Silver
    2002 Firehawk

    I've been using Royal Purple since my first oil change. I'm sticking with it, but that's personal preference. I trust it. Go with what you trust...that's why there are so many oils out there...something for everyone.

  12. #12
    Member SLP02SS's Avatar
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    02 Camaro SS S.O.M.
    07 Trailblazer SS AWD

    thanx guys, well ive been using mobil 1 but was thinking about changing to rp because i plan to switch everything over, i already have the gear oil in the rear end. but didnt know if id like it and didnt wanna have to switch back and forth like abby said so its either switch or stay with m1.

    is anyone running rp in there t56 or autos?

  13. #13
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by SLP02SS View Post
    is anyone running rp in there t56 or autos?
    My T56 gets the best non-synthetic. I think it was Castrol ATF.

  14. #14
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    Red
    2001 Trans Am

    Amsoil

  15. #15
    Senior Member rajiv1998's Avatar
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    Black
    1998 Pontiac Trans Am

    the guy i bought the car from did run synthetic. But since i got it, im running mobil 1

  16. #16
    MOTOR CITY MARO' SSTODD's Avatar
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    PEWTER
    2000 CAMARO SS #3821

    I just switched from only mobil1 to pennzoil platinum, $19 for the 5 quart bottle. Go read "oil junkie" 20+ pages and see the bad rap mobil1 gets for shearing after heat-up. Sarge is the true oil junkie.

  17. #17
    Member svt_eater's Avatar
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    Silver
    2002 Firehawk

    Quote Originally Posted by SLP02SS View Post
    thanx guys, well ive been using mobil 1 but was thinking about changing to rp because i plan to switch everything over, i already have the gear oil in the rear end. but didnt know if id like it and didnt wanna have to switch back and forth like abby said so its either switch or stay with m1.

    is anyone running rp in there t56 or autos?
    I have RP in my tranny, rear, and motor. I have been happy with it so far. I had some tranny noise before I started using RP, so I'm not necessarily happy with the factory tranny fluid anyway. I have a T56.

    Hopefully I can get the tranny fixed soon, but I suspect it won't be that cheap...I think it's my input shaft bearing...yay me! I am hoping to do a new clutch/flywheel combo as well. We'll see how it all works out, but I plan to stick with RP either way.

  18. #18
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    00 LS1, WS6, V8 Gremlin
    96 & 98 GTPs, 64 'Cuda

    I have heard that Mobil ! has gone back to what can be classified as fully synthetic - then again the FTC has changed the definition for what you can or can not call synthetic.

    Be interesting to write a few people and try for a definitive answer.

    I have no problem with Mobil 1, it's a good oil base with good detergent additives. Castrol and Valvoline are also good oils.

  19. #19
    NATRALLY ASPIRATED 495 HP TASWEET SS's Avatar
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    pull me over RED
    2002 camaro SS

    roger that, thats why half of nascar uses it.

  20. #20
    Grand Imperial Wizard Sarge's Avatar
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    Retired Outlaw Sum Bitch

    OK....Listen up guys....don't get caught up in this 100% synthetic bullshit.
    Todays Conventional SM rated oils are better than many oils that are marketed as "synthetic" anyway. Lets walk through this.
    Mobil1 has changed their basestock. For whatever reason...shortage of PAO ( Katrina) or the bean counters wanted more profit. Fact is the basestock has changed and clearly reflects a GroupIII basestock. Mobil1 also changed their marketing from "100% PAO" to "Includes 100% PAO"...see the difference? I'll get to why that doesn't really matter, outside of being overpriced and disingenuous in a minute....But Mobil1 is a good(not great) oil. Has higher than average wear metals in almost every LS1/LS2 UOA I have ever seen......and also has issue with shearing....that is bad kids because when an oil shears it leaves pressure point ( see rod bearings) with little to no protection=high wear metals in your UOA. I put Mobil1 in the middle of the pack at best.....Royal Purple is a real disappointment. Once again they have a significant shearing problem. Racing 41 sheared to a low 30 weight on me and I have the worse UOA I have ever had. Come to find out RP is having that issue across their product line. I'm not touching that purple stuff until they make some changes and I see it in multiple UOA's.
    Folks what was "best" last year may suck donkey butt this year. These guys change their base stocks and add packs like I change my skivvies. So you must stay up on what is going on....and yes I make the investment and get VOA's done by Terry Dyson himself....so no marketing crap enters into the equation....OK....Pennzoil Platinum/Amsoil hands down the best oils out there. RedLine is not for street driven cars....detergents are almost non existent and sludge is an issue running it on the street for long periods of time. As I mentioned the SM rated conventional are kick butt.....Castrol GTX/Pennzoil ( Yellow Bottle ) and Quaker State are loaded with outstanding add packs and are delivering excellent wear UOA's. Go 5000 miles with any of these in total confidence. I'll get into any specifics about any statements I have made here with anybody....feel free to ask away and I'll do my best to answer you.
    This is my signature. It is mine. Nobody else has one like it.

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