airdog good.. fass too.. fuellabs good as well... better filtration and more volume (excess simply returned to tank) at steadier and more reliable pressure... it's my firm belief that failed HFCM's are a major contributor to failed HPFP's, and because they cease providing both pressure and volume the HPFP NEEDS to work correctly- the fuel is used not only as the product pumped, but for cooling and lubricating itself... run out of fuel? you can grenade that thing in a heartbeat.
lubricity needs to be added to the fuel... < those are periods. 15ppm ULSD has less sulfur (duh) but the process that removes sulfur also removes the lubricants, and leaves it 'dry', which is hard on the parts it encounters- it also makes it more susceptible for sliming and clumping up (if it isn't used up and replaced often enough- you can't store it near as long as you can 500ppm fuel) as the sulfur stops that crap dead in its tracks... so... add lubricity... in my experience, and using the finely tuned mechanism of my 25% hearing loss ears, and my super sensitive levi's, Standydine lubricity formula is tops for off the shelf diesel treatment (purple label)...
lubricity needs to be added to the fuel... < those are periods. 15ppm ULSD has less sulfur (duh) but the process that removes sulfur also removes the lubricants, and leaves it 'dry', which is hard on the parts it encounters- it also makes it more susceptible for sliming and clumping up (if it isn't used up and replaced often enough- you can't store it near as long as you can 500ppm fuel) as the sulfur stops that crap dead in its tracks... so... add lubricity... in my experience, and using the finely tuned mechanism of my 25% hearing loss ears, and my super sensitive levi's, Standydine lubricity formula is tops for off the shelf diesel treatment (purple label)...