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Gas octane for Spur IV

4K views 5 replies 5 participants last post by  alabbasi 
#1 ·
Hi, can anyone please tell me the best gas octane for a Silver Spur IV? Thanks
 
#6 ·
Pretty sure that the compression ratio is about 8.0:1 which is pretty low. High octane fuel would be a complete waste of money if your engine does not need to run on it but top tier fuel is a good idea as it has the detergent package that keep the engine clean. Cheapest place for top tier fuel is Costco.
 
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