Rico3in1 So if I have the GT PP did you suggest just using 87 octane. Long term is the larger octane better for the car?
With the GT it would probably be better to just use the 91 or 93 octane because that engine will perform much better with higher octane.
It will not hurt anything using 87 octane in that engine unless you live in a place with a lot of up hill streets or towing. Then you want to use 91 or 93 octane to avoid any chance of engine knock.
Now with the 3.7 V6--87 octane seems to be fine. I tried 93 and there was "NO" noticeable difference at all in performance, MPG or power. I just went back to the 87 Octane. Mostly whatever B.J.'s sell for gas works fine for my car. It is a 3.7 automatic and always runs great.
2012-candy red- V-6 MCA, Automatic Trans. CFM Valve cover breather. MMD blackTail light trim.Magnaflow axle back street mufflers, JLT oil catch can.MMD hood struts.
Airaid Cold Air intake. red caliper covers, 3.7L performance engine cover, Flat black hood spears.Boss 302 strut brace, CDC rear panel, Trunk Cargo net,--Dash carpet cover,
Viser stickers to cover ugly yellow warning crap,Aluminum driveshafft and Swarr Bar.