Hey guys, just a quick question purely out of curiosity... i have 2 evo 9 turbo's here in front of me and looking in from the hotside at the turbine, one seems as normal and the seems red in colour? can anyone explain why this is?

Normal:



Red:



Can anyone shed some light on this?

 

The red one is most likely caused by a fuel additive.

 

Running 104 unleaded caused that color on my plugs

 

octane booster.

 

I agree with the above statement. Octane booster has turned my plugs to that same brick red color.

 

ah ok! thanks guys