Oil Prefrence

[Buckeye]

What brand of Oil do you use??

Just wandering what everyone uses.

I 've always used Valveoline

[gamble71]

Mobil1 ;D

[sevenslats]

motor oil:  Penzoil 5w30
gear oil: either Royal Purple or Mobil 1 Synthetic
ATF:  Valvoline Synthetic

[gp_1]

Castrol 5w-30 in my jeep

Valvoline high milage in the chevy

Whatever is on sale in the GMC

[PoorBoy]

Mobil1 in everything except the jeep.  I used valvoline high mileage in it the last time I changed the oil.

[AK20]

Napa 10w30 in the truck, Napa's Arctic Gear Oil in the tranny,tcase, and diffs.

[4x4_MMMH_4x4]

vegtable oil is nice for deep frying

[TJVigilante]

I use Mobil 1 whenever I can, but this last oil change we were out of Mobil and Castrol had a $10 rebate on synthetic, that with my discount I got a full synthetic change for 30 bucks. 5W30 in the Jeep, this last time it was 10W30 in the dodge, but will be out in a few months.

[mousee]

valvoline synthetic in everything...

[crazy4ink]

Royal Purple in the engine and diffs.

[Advent]

Mobil 1 in the engine, Mobil Synthetic in the tranny, tcase, and diffs.

Olive oil in the fryer. Macadamia nut oil for flavoring of most foods, but sesame oil for oriental.

[AKMark]

Castrol Syntec. Worked great for 185K miles. I still am pulling more than 140 psi in all six cylinders.

[GreatWhite]

I saw an episode of trucks where they did a test on the royal purple and they said that it gives you more torque horsepower and better gas milage!! I DONT KNOW!! but i m gonna give it shot in my jeep just need to know where to get it at.

[AKLJ8]

I use Amsoil in my rigs... Beats all others in my opinion.

Here's a link to some product testing done by API. The American Petroleum Institute...
http://www.amsoil.com/performancetests/g1971/index.aspx

[gamble71]

I saw an episode of trucks where they did a test on the royal purple and they said that it gives you more torque horsepower and better gas milage!! I DONT KNOW!! but i m gonna give it shot in my jeep just need to know where to get it at.

Saw royal purple at napa last time I was there. Just a quick note... while castrol is a good oil, they actually had the definition of synthetic changed because their oil is not a true synthetic, but a really pure base oil. It's on the web. Like I said, good oil, but if I'm paying synthetic prices, I want synthetic.

[Advent]

Just a quick note... while castrol is a good oil, they actually had the definition of synthetic changed because their oil is not a true synthetic, but a really pure base oil. It's on the web. Like I said, good oil, but if I'm paying synthetic prices, I want synthetic.

It actually used to be full synthetic. But they figured out that they could make it cheaper using a dino oil base stock. It's still the exact same formulation as it was before.