Changing the fluids this weekend, new some tips on what to choose (Diff, Trans, &Oil)

I use to go with Mobil 1 synthetic for my oil but now I've heard they switch to a different base oil which changes it up or some sht.

1) What brand oil do you use and what weight? I know I will probably go with 5/30 like usual and won't ever change. Probably going to buy Royal Purple if Autozone has any.

2) How many quarts do I need for the trans and what brand/weight do you use?

3) How many quarts do I need for the diff and what brand/weight do you use? Do I need the G80 additive too or is there a double mixture with the diff fluid that already has it?

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Come on guys, there isn't a wrong answer here lulz.

I use Valvoline full synthetic. My grandfather, father, and uncles are swear by it so I use it too. I like it because its cheaper than Mobile 1. I do use a Mobile1 oil filter though. Autozone had a deal going for a while that was like $30 for 5 quarts and the filter. I use 5.5-6 quarts. Use to burn a quart every 1500 miles which stopped after switching to synthetic. Just for reference this is in a 2k sierra 4.8L

http://www.ls1truck.com/forums/racer...ion-fluid.html
there is your answer on trans fluid.

http://www.ls1truck.com/forums/power...iff-fluid.html
and your answer to the diff

In other words I should have searched more for my answers lol

Thanks Kerrige

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Originally Posted by 08Chevy

In other words I should have searched more for my answers lol

Thanks Kerrige

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You prolly the case. I am just not a dick about it.