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What oil is best?

This is a discussion on What oil is best? within the Internal Engine forums, part of the LSx Technical Help Section category; I'm just wondering what kind and what weight of oil every body is using....

  1. #1
    024mula 024mula's Avatar
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    '02 Firebird Formula

    What oil is best?

    I'm just wondering what kind and what weight of oil every body is using.

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    Y2KArcticSS's Avatar
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    2016 Camaro SS - Summit
    2001 Trans Am WS6 - NBM

    I've used Amsoil in all of my vehicles for a number of years, mostly because I put the miles on quick and I get longer intervals with it.
    I stick with 5w-30, though I did run 0w-30 for a while in my old SS. I didn't notice any difference honestly, but it was slightly cheaper than 5w-30 back then

    2016 Summit White 1SS - The DD - Mishimoto catch can, Solo axleback & secondary cat delete, LED sidemarkers & reverse lights, head/taillight blackout, RCC custom badges
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    '02 WS.6 / '07 Suburban

    I still run Penzoil Platinum 5W-30 in our Trans Am.
    024mula likes this.

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    2003 GMC Sierra

    Mobil 1 is what I used on my truck, I thought that all oils are just the same.

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    Moderator 98TransAmWs-6's Avatar
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    I use Valvoline VR1 since it was suggested by my engine builder.
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    I always use Mobil1 5w30.

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    Member DarrenWS6's Avatar
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    I always run whatever the cap suggests. 5w30 it be. If its Ford, 5w20 lol. I run Mobil 1 because its a good quality decent priced oil for any 100k engine. If I was to go through a rebuild and start fresh I would probably use Amsoil.
    2000 Trans Am WS.6 M6

    SLP lid & bellow w/ K&N, GMMG catback w/ Corsa Clones, UMI SFC, UMI Adj. Panhard, UMI Adj. TQ arm w/ relocation kit, QTP Longtube headers ORY, LS6 intake, EGR/A.I.R delete.
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    Quote Originally Posted by DarrenWS6 View Post
    I always run whatever the cap suggests. 5w30 it be. If its Ford, 5w20 lol. I run Mobil 1 because its a good quality decent priced oil for any 100k engine. If I was to go through a rebuild and start fresh I would probably use Amsoil.
    Been using Amsoil and Mobil 1 here, whatever is available or on sale. Since someone confessed he had bad experiences using different viscosity of oil, I stick with what is recommended on the cap. When I helped my buddy install the shocks from 4Wheelonline onto his truck for their MI trip last year, he used different viscosity of oil that is appropriate for the weather.

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