Keep the OMP and run synthetic if you want. NO problems. I have done it and tore down several motors this way with no problems. I run that way now.

If you wanna run synthetic so bad just run royal purple. It says on there site is safe for rotaries. It's also what they run in the rotary race cars. It's designed to burn without leaving any ash or residue in the engine to prevent carbon build up.

Ummmmmmmmmm, the rotary race cars that I have seen...... race cars.... all ran premix. Now if you're talking about a street car that races, well there are a TON of different opinions on that subject.

Im just sayin its the only sythetic they will use for engine oil also in the race motors so that has to count for something, i realize they run premix, thats also why i stated that royal purple was designed to burn with out leaving any gunk behind to clog up the engine so it could be used in the rotary engines

those teams also eliminate the OMP in order to run synthetics in their rotaries....so even then the synthetic oil won't get into the chambers. That's why the OP wanted to remove his OMP

I've heard that any really good synthetic oil is fine for the stock OMP system.

I was talking with Dave about this today actually and he agrees that good synthetics show very little wear or carbon buildup. He's seen this on motors that he's torn down with ~80k with puked coolant seals and the housings were generally reuseable. FWIW I'll be running synthetic oil in the sump and sythetic 2-stroke feeding the OMP with a little added in the gas as well.

Okay once again i will say, i was just making a suggestion, from what i understood he wants to remove the omp SO HE CAN run syntetic, with any really good synthetic he can use it and still keep the omp fully operational, i was just sayin royal purple is stated as being safe for our motors by the company, which as far as i know no other sythetic companies available at like advance auto or any where of the like claim. I understand that the race motors have the omp removed, with that i was just making a point that the oil is obviously good at what it was first designed to do, lubricate the engine. Then second that it was safe to run with the omp, which would mean he wouldnt have to buy or make the stuff to eliminate his omp. Thats all. And yes i do run royal purple. And to Titanium, i am also in the process of looking to remove the omp from my turbo car, and will also be using 2 stroke to lubricate the seals, which is what i reccomend if any one is going that route. Just gotta get me a aviation kit.

so what would be the best for the car? its just a track car nothing really more i do drive it on the streets sometimes

premix a lil bit, leave the OMP alone, and run regular mineral oil. Best/cheapest for the car IMO.

agree'd.

Keep the OMP. I can show you what it does if you dont premix properly. Done it both ways and there is no reason to remove it unless you are a fully sponsored race team. Run Royal Purple if you want. I have ran it for years now. Torn down quite a few abused motors running RP and a OMP. No problems. The mechanical OMP is idiot proof. The premix is not.

/\ Ok, well my omp broke and I just so happend to score a Stage 2 RTEK for cheap, so now I run premix in my S5 vert...

Can you please elaborate on how to premix properly? I thought that it was just a "1oz oil -to-1gal" of gasoline ratio?

generally thats what people do 1:1. i do .5 of premix to 1 gallon of gas because 1:1 fouled my plugs quick.

I hope you mean 1 oz oil : 1 gal of gas. That would be 1:128, not 1:1. I would run that if I were using run of the mil 2-stroke oil. Idemitsu actually reccomends a 1:256 or a 1/2 oz per gallon of gas.

FWIW - I'll be running 1:508 in the tank, 1/4 oz per gallon of gas, and the OMP as well but injecting the same Idemitsu 2-stroke oil.