I'm going to swap out my fluids in the next week or so and was looking for consensus opinons on the "best" fluids.

engine oil?
Transmission fluid?
Rear diff fluid?

I figured just using the Mobil 1, as factory recommended. Also, this is the first car that I've had that used an oil life indicator. Do most of you change based on that, or still do regular monthly/mileage intervals? Car is driven maybe 7-10 times a month, mostly babied, just highway.

 

If it's not driven that much I'd go more by time intervals not miles for oil changes. Like every 6 months or something reasonable.

 

I go by the monitor and use Mobil1 for motor as the monitor is designed for it. Redline oils are working superb in all temps for me in the tranny and diff.

 

-Radiator: Caltex 33/67
Radiator additive DEI RAD RELIEF
-Engine oil: Mobile 1 Fully Syn 10w50
-Transmission Dexron 6
-Diff oil Full syn valvoline 75w90

 

Rotella T 10W-30 for engine oil. Mobil 1 has changed due to emission standards along with Royal Purple. I wouldn't put either of those in a lawn mower. Redline fluid for rear diff and transmission.

 

I run amsoil oil/filter in my motor, car gets driven less than 3k a year so I just change every fall before storing. I plan on doing redline in the trans and diff like some of the guys here already do, always hear good things about it.

 

amsoil in everything but engine.

 

I use mobil 1 0w40 because it still carries the API SN rating and has the higher zinc and phosphorus. Redline in the diff and I plan on redline in the tranny later this summer. I may consider switching to redline for the motor if the price was better.

 

i run rotella cause i'm cheap. and it's good stuff.

 

same here for the rotella in the engine

 

Mobil 1 5w-30 in engine.
Prestone green coolant roughly 50/50
Trans fluid; redline mtf 3qts and redline 75-90w
Diff; redline 75-140