High Fuel% 2013 Mazda CX-5 2.0 Skyactiv 40579mi

[badtlc]

Another significant piece of evidence supporting my skyactiv+premium=no fuel dilution stance. Glad to see you gave it a try to see for yourself!

 

[MCompact]

Originally Posted By: vincegt

Definitely runs rich; the tailpipes are sooty inside. I have concerns for the longevity of the engine because of that. Combine EGR and DI, and your valves can build up gunk prtty quickly (no gasoline detergent to clean them). We'll see.


While not a Skyactiv motor, the DI turbo I4 in my Mazdaspeed 3 runs very rich at high throttle openings. The back of the car is peppered with soot after a three day HPDE. That said, the motor is running strong with no issues after nearly 151,000 miles.

 

[buster]

I have only been running premium fuel and I'm using Redline SI-1 every 3k miles.

 

[buster]

Originally Posted By: badtlc
Another significant piece of evidence supporting my skyactiv+premium=no fuel dilution stance. Glad to see you gave it a try to see for yourself!


I think you're right. I should have a UOA soon.

 

[gner]

I have a 2014 Mazda CX5 and had a strong smell of gas in the oil. so i
drained it out early and sent it to Blackstone. This oil was changed last
November, with cold winter and mostly short runs. report just came in today.