i wanted to service my 2015 chevy tahoe transmission by changing the fluid doing the transfer case and servicing the front and rear differential. what are the best fluids to go with. i heard some people saying to go with amsoil or redline or should i just go with oem.
ok those are all different oils (listed in your owner's manual)
Transmission: Dexron VI
Rear axle: SAE 75W-85 Synthetic Axle Lubricant (GM Part No. 19300457)
Front Axle (Four-Wheel Drive) SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88900401)
Transfer Case (Four-Wheel Drive) DEXRON VI
you're gonna flip when you see the prices of fluids though
Yes, just yesterday I went to WalMart to buy some Dex/Merc and found the price has gone up by nearly 30% over the last few months. Interestingly, Valvoline was slightly less expensive than the store's own SuperTech brand.