randyl
Junior Member
Dealer delivered with a full tank, not sure what they used. Manual says 87-89, but 89 recommended for "
optimum performance and fuel economy".
I know this discussion has been floating around for years, any definitive conclusions reached over time on 87 vs 89 for this engine's performance, efficiency and most important to me: engine life?
Any harm to engine life with 87, if I didn't care about max performance and efficiency?
Also, maybe a dumb question, but any reason I couldn't fill the tank with half 87 and 89, call it a compromise between cost and performance?
optimum performance and fuel economy".
I know this discussion has been floating around for years, any definitive conclusions reached over time on 87 vs 89 for this engine's performance, efficiency and most important to me: engine life?
Any harm to engine life with 87, if I didn't care about max performance and efficiency?
Also, maybe a dumb question, but any reason I couldn't fill the tank with half 87 and 89, call it a compromise between cost and performance?