Oils and lubes

Does anyone use Red Line oils and lubes in their trucks? Was just wandering if it's okay to use non standard Toyota products...especially wandering about ATF

 

I use Royal Purple in the diff and I use their 5w20 in the engine. I stick with the Toyota World Standard trans fluid though.

 

I use Mobile 1 5w-20 High mileage oil. I use Mobile 1 Synthetic Gear oil (forgot the viscosity) for the Front/rear differentials and transfer case. I use Valvoline ATF+4 for the power steering fluid. I utilize Prestone Dot 3 brake fluid for the brakes. I use genuine Toyota Coolant. I use genuine Toyota World Standard Fluid for the transmission.

I would not use anything other than Toyota World Standard Fluid in the tranny.

 

I use Red Line in the front and rear diffs. 75W85 per 2014 owner's manual. It's been solid thus far.

 

I'm looking hard at buying a case of Mobil 1 75/90 (LS) for servicing the front and rear differentials and wonder if I could use limited slip fluid in the transfer case. Any ideas or concerns about that?

The truck had been faithfully serviced at a Toyota dealership for the first 245,000 miles and it shows, but I just don't think I can afford that kind of upkeep and would prefer to do the work myself. That being said, I fully intend to let someone flush the transmission with Toyota World Standard when the time comes.

(I thought it would be easier to jump into an old forum that most closely covered what I was searching for rather than start a new one)

Thanks!