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I'm very anal about mechanics/Service touching my vehicles as I know they don't treat them as if they were their own, which is unfortunate on $45K+ vehicles. I know I need a Dexos but I want to do it myself.

What type of high performance oil are you using? I would like to maintain the same type of oil in my vehicle from oil change #1. I'll be letting Lingenfelter upgrade my 2SS with a 600HP Maggie package late summer :thumbsup:. This is my first high performance vehicle and I need some opinions with your vehicle experiences.

Thank you all! :cool:
 

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Same. Mobil 1 full synthetic.
 

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As stated Mobil 1, which is what the car comes with. The only change will be when you are FI the grade should go up to withstand the increased pressures. I am running Mobil 1's 15w-50 grade in mine. It is one of the few oils that has a higher Zinc level for bearing protection. And as synthetic oils go it is relatively cost effective.

15W-50 Synthetic Oil | Mobil 1™ 15W-50
 

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As stated Mobil 1, which is what the car comes with. The only change will be when you are FI the grade should go up to withstand the increased pressures. I am running Mobil 1's 15w-50 grade in mine. It is one of the few oils that has a higher Zinc level for bearing protection. And as synthetic oils go it is relatively cost effective.

15W-50 Synthetic Oil | Mobil 1™ 15W-50
i used to run that same weight and oil in my LS1 in the summer months and loved it, not sure if i can get away with using it in my LS3 now??
 

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Buy whatever synthetic is on sale. Spend the extra couple of dollars on a good filter change it at 5,000 miles.
 

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I'm running Pennzoil Platinum on my car. It's been testing a little better than mobil 1, and it got the DEXOS approval.
 

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So mobil 1 15w50w wont hurt these engines?
 

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Prolly wont hurt it but that's a thick oil so prolly hurt mpg and performance a bit.
 

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i used to run that same weight and oil in my LS1 in the summer months and loved it, not sure if i can get away with using it in my LS3 now??
You can. You might lose 1-2 mpg... But hey, who is really in the muscle car game for mileage! :confused: ;)

My lifters were noisy almost from the get go on my L99. I switched to the 15w-50 (before even going FI) and low and behold things got real quiet and smooth.... :thumbsup: :thumbsup:
 

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You can. You might lose 1-2 mpg... But hey, who is really in the muscle car game for mileage! :confused: ;)

My lifters were noisy almost from the get go on my L99. I switched to the 15w-50 (before even going FI) and low and behold things got real quiet and smooth.... :thumbsup: :thumbsup:
thats good to know, yea i can here mine alittle also
 

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Mobil 1 for me. I used Royal Purple w/ friction modiifier on differential but had to get more friction modifier because I got the grinding noise when reversing. I will use Mobil 1 next time
 

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Amsoil Z-Rod 10W30. High zinc which is perfect for big cam blown engines like mine. Only run WIX filters as well.

Cheapest deal around from: AMSOIL
 

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Castrol Syntec oil with Bosch filter sometimes K&N if it's on sale. It's never let me down since the LS1 days of old.
 
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