kidS4

i have a question out premix, i know when you remove the oil metering system from the fc you have to go with premix, my question is because im not quite sure of where the premix goes in due to some info that doesnt seem right but does the premix go into the engine and take the place of regular oil or does it go in the gas tank?

misterstyx69

iTrader: (142)

you mix one ounce of 2 stroke oil to one gallon of gas..(that is about the "norm")
that is "premix".
So ya,it obviously goes into the gas tank.Gas is now acting as a lubrication venue so the old Oil metering system is not needed.

snowdoody

So with that u don't have oil then right? Seems dangerous. But I can see the advantages

Sgtblue

iTrader: (16)

Your kidding....right? Pre-mixing 2 cycle oil with the gas in a rotary does NOT replace the oil needed in the oil pan/crank case.
If you don't understand this, do yourself and your car a favor and have it professionally serviced. Don't jack with it.

snowdoody

Thanks for answering the question sgt. Now what advantage would premixing provide? Besides the ever saught after black ring around the exhaust tip(s)

kidS4

and you still use the oil that is for the crankcase and pan? ok i get it

Tem120

iTrader: (5)

just to beat the dead horse with a stick . just to make extra sure .

you use premix(2stroke oil) AND motoroil motor oil goes into the engine / oil pan . ( do not use motor oil as premix )

and premix goes into the gas tank when you fill up . its better to add the premix in first then the gas so try and know what you will be pouring into the car the reason for this , as I've been told is so that when you pour in the gas it mixes the premix .

if the car has already had its Oil metering pump removed. Then great .you MUST run premix .

if you are thinking about removing it yourself.. I suggest you search and READ and Read some more . we dont need another my engine went boom thread

Sgtblue

iTrader: (16)

You really should study the design of the rotary and understand how it functions. Crankcase oil functions to lubricate the internal components, rotor and eshaft bearings, rotor gears, pump and chain etc. In stock form, the rotary engine also injects oil from that crankcase directly into the combustion chamber via the Oil Metering Pump or OMP. This is done just prior to the combustion event. Injecting oil this way helps the hard seals (apex and side-seals) to seal against the housings and irons and provide better compression. At the same time that oil lubricates the surfaces and reduces wear over time.
SOME owners remove the OMP and simply pre-mix 2 cycle oil in with the gas. This works the same and has the advantage of injecting cleaner oil and oil (2 cycle) that's desgined to burn more completely than crankcase oil. BUT YOU STILL NEED OIL IN THE CRANKCASE for those other engine internals.
Other owners keep the OMP, some modify the OMP to source 2 cycle oil instead of oil from the crankcase and still others, like myself, retain the OMP in stock form AND premix at a reduced rate. Point is, there are different schools of thought on it. When you have a better understanding of the rotary, search and make your own decision on what's best.

snowdoody

Ok cool. Thanks for explaining it. This rx is my first car so I'm still figuring it out I still have to do more research on how the timing works too.

I've always hear it should consume oil but that's where it stopped and I never knew why. Till now

kidS4

yeah its mine too thats why im askin

drewkeen

And make sure that you put standard 4 cycle oil in the crankcase

kidS4

drewkeen ok and thats with removing the oil metering pump to correct?

cloud85

good info

HAUNTED HAMMZ

Correction oil*

cloud85

Yeah same concept as a dirt bike

cloud85

what brand 2 cycle are you using

Sgtblue

iTrader: (16)

There are some (much) more expensive magic rotary oils advertised out there. I go with most any TCW3 ashless 2-cycle that's on sale. Usually that's Penzoil.

Tem120

iTrader: (5)

wow , FC as your first car I dont know weather to call you lucky , or cursed haha . steeeep learning curve with these cars .

snowdoody

We can say cursed for now. I grabbed a bad rx and almost all the electrical sensors are broken so idk if its just like that or what is broken and has to be fixed. Either way ik what to get and look for, for my next one.

Aaron Cake

iTrader: (1)

As long as the stock metering oil system is working, then there is no reason to premix for regular old daily driven cars.

Sgtblue

iTrader: (16)

Maybe not a daily, but I have a street driven car. Stock boost levels PFC and bolt-ons.
I premix (~ .5 oz. @ gal.) with a working stock OMP. Reasons:

*OMP is not ideal on it's own for reasons mentioned above.
*Pre-mix is inadequate on it's own...since injector duty goes to zero on on long periods of decel and from high rpm.
*I added a simple WI system which, among other benefits, manages the increased risk of carbon issues over time from running both systems.
*A few years ago I spent alot of cash on brand new housings.

zcar74260

if your car is fuel injected they make premix oil specifically for injected engines

kidS4

this isnt my 1st car period its just my 1st rx7 but yeah it is a steep curve

Rotor_Venom08

iTrader: (3)

getting rid of the OMP just simplifies things. and guarantees your engine is being properly oiled vs waiting for the stock unit to fail. thats about it . as far as any advantages? idk.

your car will smell like a boat ive heard that drives the ladies wild....

Krugans84

I just purchased an 84 gsl-se with metric buttloads of miles, and premix just because at this point.

And its winter here, so im not getting in to what is working or isnt, just a precaution.

I do have a question here though, would I be better served running injector cleaner without a premix of 2 cycle? Or is it pretty much irrelevant.