I was using Stanadyne Performance Formula in all my vehicles but it is a bit pricey. I recently switched to Howes Lubricator Diesel Antigel treatment. It claims to do all that Stanadyne does, is about 1/2 the price, smells WAY better, etc. So far so good. No changes. I use the additives as cheap insurance that the fuel is adequately treated for antigel and the added lubricity and water removal cannot be a bad thing. I may jinx myself but I have never had a fuel related problem in 4yrs of driving diesels. RT

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