[Big White Dmax]

I am going to use the Stanadyne performance additive in my new truck. I have done a lot of reading on this product, emailed the rep and I believe the claimed 7% mileage increase is fairly accurate. It is more expensive than some additives but with the crazy high cost of diesel fuel, a 7 % increase will pay for itself. Stanadyne makes diesel injectors, I trust them to make the right additive. All the new low sulphur diesel fuels have lubricity products added but only time will tell if they will make the new engines last the way reg fuel made the older diesel engines last. To me it is cheap insurance.