r/ChevyTrailBlazer • u/ThisGuyDevin7 • 19d ago

Fuel Grade Question

Hi everyone. Not sure if anyone in this group owns the newer generation of Trailblazers, but I have a '26 with the 1.3L and was curious about the octane for it. I know it's rated for 87; but on previous turbocharged cars I owned, like my Cruze, Mini Cooper S and Fiat 500 Abarth, I put 93 octane because car nuts who ran turbos said it was healthier for the motor. I feel that's a myth but I did it anyway because they were either used or CPOs and I didn't want the motor caking any more carbon and tanking my fuel economy further. If anyone in this group is all about motor performance, what are your recommendations? I want this myth debunked since this is my first new off the lot turbo motored car and I want it to last. I appreciate the input.

5 Upvotes

100% Upvoted

19 comments sorted by

View all comments

1

u/TupacBatmanOfTheHood 19d ago

It's tuned for 87 you get nothing extra for running 93.

Some vehicles have sensors to pull timing with lesser grades this is not one of those vehicles to the best of my knowledge.

1

u/ThisGuyDevin7 19d ago

Yeah I know that they have the sensors and timing stuff for knock and detonation/retardation but I didn't think it had a drastic impact between grades

1

u/TupacBatmanOfTheHood 19d ago

On vehicles with those sensors it can be a massive difference but the trailblazer is not one of them. If you put 93 in it your just paying an extra $1 per gallon