Yep, it's good stuff. I'll be using it from now on. Gonna experiment with some other stuff soon, but this is working great now.
low freeze point, serves as anti gel
better than trans fluid, designed to burn where trans fluid is not
lubricates injectors for long life and troublefree operation
increases fuel mileage due to added lubricity and btu content
lubricates and protects entire fuel system.
better than most fuel additives because they are mainly Xylene or Mineral Spirits, yuck!
One thing alot of folks may not know is that with the introduction of ULSD, the minimum lubricity standard changed (lowered). The process of removing sulfur from the fuel strips away lubricants. In order to even meet this new, lower standard, refiner's created an additive pack that is put into your fuel by the delivery driver!
I've been using Stanadyne Performance Formula since buying a case about 3 years ago. I based that buying decision on writings by TheDieselStop forum participants who seemed to be the most experienced and knowledgeable. My notes from that research indicate typical users estimated about 0.5 increased mpg. That's so far from this 2 mpg claimed observation that dual-tank mpg-meter-equipped truck owners shouldn't have a tough time distinguishing between them.
Here's my suggested test procedure. Fill front and rear tanks with the same pump's diesel but the different additives in their suggested additive/fuel ratios. Switch dash-mounted fuel-tank-selector switch between front and rear tanks. Set cruise control on a long, flat, windless Interstate highway. Do not change cruise control until test observations are complete. After a few A-B comparison tests constant cruise control on level highway, consistent read-out values should emerge for each comparison mix. Wait until 5 miles have been run after switching tanks to allow sufficient flow to remove the other mix before recording current instant mpg meter values.
Do I trust Ford overhead MPG meter accuracy? No. But that's not at issue here. What's at issue is consistency. Factory overhead meters can display differences sufficiently well to leave no doubt about significant mpg differences.
Aside from mpg gains, I KNOW from experience that Stanadyne Performance Formula can restore some marginally operating single-shot injectors to good performing condition.
i tried to go buy more at walmart here and they were sold out of the 1 gallon. So i went to Advance Auto and bought some Pennzoil outboard 2 stroke and will give it a try when the SuperTech runs out. I was amazed at the difference in mileage i got. I thought Gregrob was high when he told me about it, but i became a believer after the first tank with it. My first 170 miles on my tank were around town and then i drove the truck to bandimere and back for Truckfest and i still got 16-16.5 miles to the gallon and i hadnt seen that since before the ULSD came out. Previously i was only getting 14-15 on the highway with the ULSD.
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