Steps Needed Before Premix on rx8???? Also advice on Premix
 

Hello, im not to sure about Premix,

I heard it was good for the Rotary Engine's, so do i just Dump Some 5w-20 into my Gas tank and thats it??

how do i go about doing this...... if sooo

is it really That good For my Engine, i dont want it to die on me....

NOOOOOOO

"Pre-mix" is 2-cycle oil, not motor oil. The type you would put in the gas of say a 2-cycle chainsaw or weedwacker.

Idemitsu is a specially formulated pre-mix oil for rotary engines, although there are other good 2-cycle oils out there.

4 to 8 oz of pre-mix per tankful is the norm.

if you dump 5w20 ENGINE OIL into the tank, your engine will really die on you.

You should search ...

Sorry this made me laugh, get some Idemitsu and put it in the gas tank.

Read this thread and then come back and ask questions,,

LINK!

Ok i got it =D Thanks you guys (and for the LInk)

There is a lot of info in that thread. Have a good time. :wavey:

not really understanding the ratio factor behind the premix like it should be done once you hit the gas station but like how much saber pro should i dump if im filling from half tank and so on teach me the math real quick?

I use about 1 oz per gallon. Fill the tank, look at how many gallons it took and add that many oz of oil.

I was reading on some of those premix threads we should do it before the gas goes in though so i didnt want to do it wrong on the first go so if your saying 1oz per gallon and i got a 15.8 gallon tank I would have to buy 7.9 fuel and use 7.9 2 stroke to make a full tank cause i mean i cant fit 31 gallons of premix in a tank or am i just not understanding whats going on here

And ive seen people talking about 600:1 or 250:1 where do those numbers come from ( im sorry i just don't understand i know its dumb questions but those other threads did more arguing than explaining and they were too long to read through)

I said one oz per gallon. So if you put 11 gallons of gas in, you put 11 OUNCES of oil.

1 Oz per gallon is 128:1 ;)

My bad read it wrong lol but dang from what i read on another sight the lower the ratio the lower the compression because that means it needs more lube to keep the seals in good condition to maintain compression and if you have your original omp you really dont need anything less than 600 : 1 ( don't quote me i cant find the page anymore to link it ) or am I mis informed

Not sure where you are getting some of this......600:1 is way too little. Might as well not bother.

For a street car with OMP half ounce per gallon is likely good

I run 80:1 on the track with no OMP

A street car you beat on the old standby 1 Oz per gallon would be about right

Like Dan says, you seem to have your premix info backwards - 'less than 600:1' would be no premix at all. You 'need' around one ounce of oil per one gallon of gas, to be effective.

A U.S. gallon has 128 ounces, so that would be 128:1 ratio.....

And for what it's worth, idemitsu recommends 128:1 right on the bottle. But when I was running saber pro, I was usually 125:1 ir briefly 150:1. During breakin, I ran 100:1.

Do you still have your original omp ? Isnt idemitsu more expensive ? Did you switch off the saber for performance reasons or just wanted to try something new just wondering i think i got the hang of the ratios so 15.9 gal = 2035 oz with 13 oz / 2035 oz = 156 /1 if im not mistaken would it be a good idea to just grab some of those red 5 gal jugs and have some pre mix ready in those instead of having to measure shit up at every fill up ?

Yes I still have the stock omp and a sohn adapter. I switched to idemitsu because it's actually cheaper here, and I figured why not go with the stuff designed for rotaries vs chainsaws. But that's another debate we shouldn't get into here. Many merits to both and both are really good options.

Measuring it out really isn't hard. You buy the 1qt containers, keep at least one close to full in the trunk. Fill the car up, then math out how many oz you want to put in. There are graduations on the side of the container. Looks like I've got about 20 oz in it right now, I need to put 11oz in based on the 11 gal of fuel it took, so pour until the line goes about 1/5 of the way between the 10 and 5 mark. Not hard at all. Once that jug gets low, pour the remainder in the sohn reservoir, toss a fresh qt in the trunk and off you go.

Do you actually recommend they do it , or just recommend that ratio when they ask you what ratio to use ?

Personally , I think the "steps needed before premix" are :
1/Increase OMP rate by 10%
2/grab bottle of premix
3/step towards bin
4/throw premix bottle in bin
5/Happily watch others waste their time and money.

I'm assuming you have an s2 motor with the third oil injector to get the middle of the apex seals? And based on that, you wouldn't have a sohn, so what are your views on the carbon deposits left behind when burning nothing but 4-stroke oil?

Nope ...........S1 engine . My view is that 95% of all carbon deposits are from fuel ...not oil.

If you think of it in that sense than wouldnt mixing oil with the fuel lower carbon deposits ?

Then again this thread wasnt made to debate on why you should or shouldnt do it its more for kids who already do it to help those who wanna start

:scratchhe