When I got my TSX almost two years ago I used to put in 93 octane, but during Summer 2004, I switched to 89 octane. Gas prices went up and my budget wasn't that high to keep paying for fuel and I travel a lot during the summers, so every penny counts. I haven't noticed any problems with 89. I wouldn't use 87 octane though....-phase- said:i agree..91 octane if i can..but if im low on cash..89 once in a while cant hurt too much right?
what is your fuel consumption figures?Revenent said:I fill up with Chevron Supreme 92 octane... Actually, my TSX hasn't drank anything else.
:nod: :nod:Noel said:When lower or using un-recommended specified octane rating fuel. The ECU will retard ignition timing which prevents detonation and pinging. These 2 will no doubts cause engine damage. Whilst retarded ignition timing also means a reduction in power output, in some extremes up to 25% until when correct octane is re-detected. The ECU will slowly "un-retard" and return to specified performance levels.
I will bet youmoney the owners manual says its okay to use lowr grade gasoline.TSX 'R' US said:oh...and if something goes wrong with your car and the dealership finds that you're using an unrecommended octane gas (so they can blame it on that), your warranty is useless.
Pay up.JoeB18R said:I will bet youmoney the owners manual says its okay to use lowr grade gasoline.
and thus will void parts of your warranty...Revenent said:Pay up.
Page 184 (Acura TSX 2004):
"Use of a lower octane gasoline can cause a persistent, heavy metallic rapping noise in the engine that can lead to mechanical damage."