Oh FYI off-the-shelf major gas stations all blends of premix they carry are TC-W3 certified by the NMMA, which is a pretty good standard to go by I think..



http://www.nmma.org/certification/programs...ndex.asp?bhcp=1

[quote name='ColinRX7' date='Jul 5 2005, 12:02 AM']I was using Castrol regularly for premixing oil, but as of recent for a daily driven RX7, most gas stations offer premixing oil right on the shelf, it's actually pretty convenient to just grab some and mix as you fill without having to carry around a jug and a metering cup...


[/quote]



where?

PetroCanada

Sunoco

Esso



Pretty much every gas station I have ever stopped at in canada carries TC-W3 certified two stroke in their section with motor oils, transmission fluids... etc..



I cant think of a single time I stopped for gas and they didn't have any two-stroke

i spose i could buy oil at the pump, or i could buy the huge jug and fill an bunch of smaller ones because it's cheaper!! yes i am a cheap *******, and i as well use the castrol premix, works good.

[quote name='nismo convert' date='Jul 6 2005, 12:52 AM']i spose i could buy oil at the pump, or i could buy the huge jug and fill an bunch of smaller ones because it's cheaper!! yes i am a cheap *******, and i as well use the castrol premix, works good.


[/quote]



Don't you buy premix in little bottles? Costco sells little premix bottles by the case

Anything TC-W3 cert = win



Premix is everywhere, everything now adays is mostly TC-W3 cert anyways.

what ratio mix do you mix the oil and gas with??

I just use Beene<-spell check Oil for my setup! That oil is CLEAR and it makes the exhaust smell GOOD!

https://www.nopistons.com/forums/index.php?...&hl=what+premix

^^ a premix thread



IMO anything that is TCW-3 qualified (what else are standards for except to show a level of quality?), I favor stuff that says on the bottle "meant for fuel injection"

Idemitsu premix is formulated specifically for rotary engines has additives not to clog injectors and was what was used in the 787B lemans race car, plus its not that expensive, you can get a 12 qt case for 55 dollars from mazdatrix ( if you don't know what mazdatrix is then you shouldn't be allowed to own a rotary;). Others may work just as good but it can't be 2 stroke for an air cooled engine, needs to be 2 stroke for water cooled there is a difference. Injector clogging may be an issue with the non rotary specific premix since most of the engines that use that have a carb not injectors. mix ratio should be around the 1 to 1 & 1/2oz per gallon of gas.