ok i usually put 89 octane in my car. no detonation, by the last week i have put some 87 in. I run (what i hope is) 10 degrees advance. and sometimes, like say going up a hill or anything other common spark knock scenario, i will hear some slight detonation.
this motor is stock 137k motor, the motor seems to be a tad weak. could some carbon buldup contribute to this??? or is gas really crappy now or something??
this motor is stock 137k motor, the motor seems to be a tad weak. could some carbon buldup contribute to this??? or is gas really crappy now or something??