What gas octane???
Users of the big gassers: Dodge 6.4, GM 6.0, Ford 6.4....... Can the lower octane be used or do you need the higher octanes????? Colorado we have either 85, 87, or I think 91..
Forum Discussion
Super unleaded without ethanol (91 or 92) should be used in small engines, as per the JD and Stihl dealer.
Ethanol messes up small engines, and soaks up water in boat engines that are exposed to lots of water.
As for the truck, 87 octane. Large 6 liter plus engines have pretty low compression compared to smaller engines.
Little risk of knocking.
Ethanol messes up small engines, and soaks up water in boat engines that are exposed to lots of water.
As for the truck, 87 octane. Large 6 liter plus engines have pretty low compression compared to smaller engines.
Little risk of knocking.
