we did a poll like this in the FC section and 67% of fc drivers run premix... alot more than i thought.

 

I just use 4 seconds of MMO (like how I measure). It's very cheap compaired to two stroke oil. I don't think it smokes as much or at all rather. I'm not as worried about lowering the octane level with it as I am with two stroke. Although I have no idea how much two stroke actually lowers it and if it is even a significant amount to worry about.

Do 2nd Gen's have a oil metering pump? That's a high percentage. I would guess only 1/3 3rd Gen guys pre-mix.

 

yeah all the 13b's have OMPs.
the S4's (86-88) have mechanical omps and the S5's (89-91) have an electric one.

i'm assuming that the 13brew has an electric one as well?

 

4 oz MMO every fill up. Soooo much smoother... 19 inches of vacuum at idle with 64K miles too!

 

Oh yeah!! Of course, I don't really have a choice considering the single turbo and the bridgeport. All the factory equipment is removed. Premix is the only way to lube up my housings. I still only get 5 inches of vacuum idling at 1800rpm.

 

Yeah, and you would blow by my stock machine like I was Chrysler LeBaron. A REEEEAAAALLLYYYY swoopy, pretty one, though...

 

Keep in mind that people who care to pre-mix are more likely to vote, so don't take the results of this poll as the real proportion of pre-mixers.

-Max

 

what is MMO?

 

Marvel Mystery oil. You can buy it at pep-boys auto zone. Wit works good. You can mix it in with your oil change too if you wanted.

 

Do you mix it with the gas or the oil?

 

I put 4oz of MMO in the gas tank at every fill up. I didn't know i could use it with the oil change too. Great stuff, cheap too, you can get it at walmart too.

 

Why would you pre-mix? I didn't see anything about that in the Operator's Manual.

What's the reasoning behind it? Is this only for a modified 7 or is it good to do for stock, also?

 

Instead of typing it myself:

http://www.pettitracing.com/sections/Protek-R.html

 

i use lucas oil (they call it fuel system lubricant)...every fill up....seems to have desired qualities for rotaries....

 

4 oz. of synthetic 2 stroke every full tank for me. Been doin' it for the last 5 years out of 10 years of ownership.
No drawbacks that I am aware of and it is supposed to make your engine last up to 30% longer. I would think that it would help it run cooler as well, although I do worry about changing the a/f ratio a little. So far, so good!

I personally think the price of Protek R is outrageous. I use any synthetic 2 stroke I can get my hands on by the gallon and keep a small measured plastic bottle in my bin.

 

Thanks, Mahjik.

 

I use mobil 1 Synthetic premix oil.
Mobil oils have always been one of the best burning oils out there leaving almost no deposits. I trust their stuff.

 

Please explain the method of pre-mix. Do you mix a quart of oil to a gallon of fuel and then introduce 4 oz of the mix for every fill-up? Or do you pour 4oz of oil straight in the tank at every fill-up? Couldn't you just use 4 oz of diesel fuel for every tank of gas? I'm just throwing things up, I have no idea what is correct.

 

no wonder FDs got a bad wrap for having bad engines.

 

You pour 4oz of oil straight in the tank at every fill-up. Before you put in the gas. That way it mixes real nice.

 

Yup been doing it for about a year and love it!

Does anyone else get a lot of smoke on startup when you let your tank run really low? I never run it low on purpose, but did a few times and there was quite a cloud... Other than that it never smokes more than just a hair...

Anyway, after I first started to premix I noticed a difference in idle and response... and I just kept doing it.

 

Then why do people use MMO and Protek-R? Wouldn't it be less expensive just to use regular oil?

 

2 stroke oil is suppose to mix with the gas, motor oil is not.

 

i get a ton of smoke even w/o premixing.

 

Been doing it for 6 months since my rebuild. Using Protek from Pettit still since I ordered a huge batch. May try MMO when I run out.