I'm in the same boat as you. Ever since I started using Royal Purple motor oil, the car seems to be "loosing" oil like crazy. The last oilchange I did with RoyalPurple lasted me not even 2000 miles. Sure, in that 2000 miles you can include 2h40 minutes of track time, but still. I found it funny how the engine sounded like crap, so I took the dip stick out and it was dry.

Royal Purple rocks, but I don't know what the hell it does to my car

Going from Royal Purple to QuakerState, I can vouch for RoyalPurple's performance claim. Unles QuakerState really freakin s**k

 

so this happened before you broke your engine in?

 

This sounds strange.

With a friend driving behind your car, does he/she can see smoke out of the exhaust. I expect it on a much older like my tired 89 S13 . . . at 4.2K it started to burn oil from the exhaust wheteher normal or WOT merging into the interstate. Yes, I already knew its rings were shot at +165K miles on the engine.

 

I waited until 2k miles before i did my change up to synthetic, and it didn't effect me, infact im up to 3k now and havent had any oil loss AT ALL, is it just for the 2.0 engine that happens to?

 

i had the vanishing oil for a while.. i used some lukus(sp?) oil treatment for about 3 oil changes and havnt lost a drop since.

 

I just swicthed over to mobil 1 full synth at 20k... So far nothing odd. 5w-30 by the way

 

We have built half a dozen engines. The thing is the oil pump has fairly low tolerances and it is our belief that oil pump has trouble pushing this typically thinner sythetic oil through the motor. Ususally it cause more bottom end problems. As for this particular car. He may have worn valves etc.. rather than piston ring problem.

ROAD/RACE

 

i run full syn through my rig with no problems.... sounds like its the cars issue... not the oils

 

Yeah, I've been running Mobil 1 5w30 Extended performance in my car with no issues at all. Although I bought the car used with 48,000 miles so maybe you guys should break your cars in longer before switching to synthetic

 

i was informed by mitsubishi that Mitsubishi considers it normal to lose 1/2 - 1 quart of oil per oil change 2000-3000 miles...they said to run the regular oil for awhile and note each time i see oil gone and note the mileage...but i think i'm going to take rock up on his offer.

 

So what did you do to solve your problem or did you just get another engine.