always run 91, dumped a can of chemtool b-12 ( seafoam minus $5 in price ) in the tank.. prepping it for a cleaning lol.
couple other questions
Does it matter if I change the plugs and wires before or after seafoam/decarbonizing
should the tune come first, before anything?
Hell.. Just give me a list of what to do in order....
Seafoam decarbon
plugs wires
trans fluid, cooler, shift kit,
tune
coolant flush
catch can
... Anything else......