2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

2-cycle Oil premix. Any Problems?

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Old Jan 11, 2004 | 05:16 PM
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2-cycle Oil premix. Any Problems?

I'm asking all of those people who had experience with the Oil premix setup on rx7. Did you have any problems with it? So far form what I have read there are only benefits have not seen anything negative on this mod. I'm worried about the engine, as we all are; I want to make sure this setup does not damage it.
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Old Jan 11, 2004 | 05:21 PM
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You mean should you pre-mix? I'd say EVERY RX-7 owner should pre-mix. Use only 2 cycle oil made for premixing, don't use marvel mystery oil or regular motor oil or synthetics.
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Old Jan 11, 2004 | 05:28 PM
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Well not exactly I am actually planning to remove OMP ( oil metering pump), and oil lines, and oil injectors. (had to replace the intake manfold gasket and broke the 2 oil lines. Not only they are relatively expensive, $24, but also pain the but to put them back in and it is easier to just remove the hole system)
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Old Jan 11, 2004 | 05:52 PM
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I have a big wrie-up on this let me go find it.....


EDITE here it is: https://www.rx7club.com/showthread.p...ghlight=premix enjoy!

I haven't had one problem at all with premixing.

Santiago
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Old Jan 11, 2004 | 06:00 PM
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the only downside is having to have oil with you everytime you fill up. and having to put it in all the time.

in terms of the engine there are none.
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Old Jan 11, 2004 | 06:10 PM
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A 16oz bottle is 89 cents US money and it takes up less room than a coolant bottle which is part of my own emergency kit anyways so I don't fret over it. And its only 30 seconds more at the pump. I basically do this: use my credit card to pay at the pump and while it is authorizing the car I pour it in. By the time I am done I just grab the fuel nozzle and pump.

Santiago
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Old Jan 11, 2004 | 08:57 PM
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Do you guys use a funnel or something? Cuz i'm using a funnel and having to wipe it off is a pain in the ***

Someone out there has to have found an easier way to do this....
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Old Jan 11, 2004 | 09:01 PM
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Uhh? I don't need to use a funel? maybe your 2-stroke oil comes in funny bottles over there in the US of A, but every single 2-stroke oil i've tried in my car I could just pour straight in from the bottle.

Also every bottle I've used has had a handy little measuring 'window' on the side, so you can tell how much you've put in.
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Old Jan 11, 2004 | 09:05 PM
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Originally posted by White_FC
Uhh? I don't need to use a funel? maybe your 2-stroke oil comes in funny bottles over there in the US of A, but every single 2-stroke oil i've tried in my car I could just pour straight in from the bottle.

Also every bottle I've used has had a handy little measuring 'window' on the side, so you can tell how much you've put in.
Actually i live in Canada
But ya the bottles here don't have long necks..if they did i'd just pour it in straight. I'm using the Castrol brand 2-stroke oil...over here it comes in little 500mL bottles.
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Old Jan 12, 2004 | 01:02 AM
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the ones i buy that dont have long necks i use a screwdriver to open the little flapper that prevents the fuel from comeing back up. other than that, i love premix, its a pain in the *** some times, but worth it. also, try not to get premix at gas stations, 16oz from a gas station is ~3.68$, compared to 16oz from walmart .89$ i buy the premix in a gallon ~6.00$ at walmart and use the same bottles over and over, i have about 5 i fill up when i get low in the bin.
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Old Jan 12, 2004 | 01:42 AM
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Wal*Mart has specific funnels that's made for this use.
They are usually light blue in color and cost about 98 CENTS.
Check in the automotive section.


-Ted
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Old Jan 12, 2004 | 01:42 AM
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I wouldn't use just any 2 stroke oil. It should be TCW-3 certified. It's a cerification after going through rigorous testing such as clean burning and ash content.
I've used Valvoline Multi Purpose 2 stroke for 3 years now. I'll never use anything else after seeing the internals when rebuilding after 2 years of use.
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Old Jan 12, 2004 | 01:52 AM
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Yeah my rotors were totally smooth when i ripped appart my engine.. no carbon build up.
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Old Jan 12, 2004 | 12:48 PM
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Ok guys you have convinced me i'm going premix. So far no one blamed premix on blowing the engine or seizing it. And that is most important for me.
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Old Jan 12, 2004 | 01:43 PM
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what ratios do you guys run with?
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Old Jan 12, 2004 | 02:06 PM
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isnt it 128:1 ? I know if you search you will find it... Ive seen it many times
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Old Jan 12, 2004 | 02:11 PM
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From: Laredo, Tx
1 OZ per gallon of fuel if you do not run an MOP
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Old Jan 12, 2004 | 04:36 PM
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The good thing about the Valvoline is it has marks on the side of the bottle indicating how many oz. there are left in the bottle. Really helpful so you don't have to "eyeball" it.
Those who say it takes too much time is waaaay too f*ckin lazy. It takes what.....an extra minute or less to fill oil a few ounces of oil.
Those who have leaking injectors or suspect you have them, it will smoke somewhat on startup since it seeps into the combustion but that lasts a couple minutes or so.
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Old Jan 12, 2004 | 04:40 PM
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Yeah, i like it too. I just keep a full bottle of it in the car at all times. I use castrol super outboard motor oil.
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