I was wondering how much per gallon of fuel fellow Opti-Lube XPD users are adding in with their diesel? The bottle says you add 1/4 to 1/2 oz. per gallon of fuel and I'm getting ready to try some out on my pickup. Also...my 07.5 LMM ECSB has a 26 gallon tank correct? All replies appreciated...thanks everyone!:D

I'm not sure whether or not to use 1/4 or 1/2 oz. per gallon and was wanting to see what everyone on here is running in their trucks...

I use about 5 Oz to 15 gallons so 1/3 oz per gallon, in the middle of what they recommend.

It varies - I use 1/2 oz. per gallon in the winter, 1/4 oz. per gallon in the summer.;)

I split the difference as well, about 1/3 oz. per gal.