Hey Guys,

I just bought a "new" 2004 RX8 with 56k on it. From what I understand it was never premixed. Should I start now or is it too late? Also no issues so far with the engine, just trying to be proactive.

Thanks,
Hyde

 

I know yours is a series 1 but, this thread helped me change my thinking to premixing. From what I’ve read/been told it’s never too late.

https://www.rx8club.com/series-ii-te...ing-s2-273588/

 

+1^
Better late than never.
That's not a lot of miles, so it's a a good time to start.

 

Thanks guys! I agree, better late than never!

 

Premixing is always beneficial, I have used a ratio of 0.8 ounces per gallon of fuel and found no adverse results (the exception being that I have had a cat failure, but these vehicles are very prone to that anyways and this was already an aftermarket replacement of some kind from the previous owner).

Ideally a good premix oil is one designed to mix with fuel, i.e. two-stroke oil, stable at high temperatures, and burns as cleanly as possible. The easiest way to compare these factors is to look at JASO certifications. Idemitsu's rotary premix has a JASO FC certification, an oil that carries the FD certification has additional detergents. FB has the same lubricity properties but is NOT considered low-smoke, I'd avoid using that unless it is all that you can find.

You can read more about the JASO system here.

 

It really depends. I'we heard premixed engines the F'ed and then I'we seen non-premixed engines go for 100km miles no rebuilds. It's really up to you if you wanna go for it or no.

 

You could also get a sohn adapter.

 

Or you can do both since the sohn solves a different problem from premix.