What Oil to use for an Oil Change?

[deafgoose]

Royal Purple all the way! I use it on my turbo rx8.

What weight should I be using and when would it be a good time to switch to syntetic?

[barefooterh2o]

Mobil 1 or Royal Purple is what we use in all our Corvettes, Mustangs, Indmar engines.

[pickle311]

When I had my Outback I used Rotella until I hit the 100hr mark, I then went to Mobile1. I use the Mobile 1 in all of my vehicles and motorcycles. I used Royal Purple about 10 years ago in my race bikes, the shop that sponsored me quit carrying it so I switched to Mobile1. I noticed that my transmission shifted much smoother and I didn't miss gears anymore. I've been a Mobile1 fan since and never had a problem. I will also switch my LSV over to Mobile1 after it hits the 100hr mark.

[moombadaze]

ok, why wait till 100hrs? to switch to mobil 1

[Sled491]

You know I was kinda wondering the same thing.

[04OUTBACK]

Recommended not to use Synthetic oil in these engines til you hit 100 hrs to allow all seals to seat properly prior to going synthetic..

[Machinetoolguy]

Those of you that are using mobil 1. What weight are you using?

[Sled491]

Thanks Outback

Machine 15W40

[FoilTechHydrofoiler]

I use Rotella in everything gas and diesel never had any problems. Any oil is better than no oil.