Originally Posted By: BeerCan
I am using castrol edge 0w-30 or 0w-40
Using a high HTHS oil like that is a good thing in the presence of fuel dilution. Ford could deny you warranty coverage since you're not using the correct oil, but we know you're right using 0w40 with dilution happening, leaving you plenty of room for viscosity to drop a little.
If fuel dilution is occurring, then go ahead and use a warranty-supporting standard M1 5w30, but leave room for 1 quart of M1 V-Twin 20w-50 oil (very high HTHS boost) you add. That way, show receipts for the standard M1 5w30 if a warranty engine issue happens.
I am using castrol edge 0w-30 or 0w-40
Using a high HTHS oil like that is a good thing in the presence of fuel dilution. Ford could deny you warranty coverage since you're not using the correct oil, but we know you're right using 0w40 with dilution happening, leaving you plenty of room for viscosity to drop a little.
If fuel dilution is occurring, then go ahead and use a warranty-supporting standard M1 5w30, but leave room for 1 quart of M1 V-Twin 20w-50 oil (very high HTHS boost) you add. That way, show receipts for the standard M1 5w30 if a warranty engine issue happens.
Last edited: