PRI-D Fuel Stabilizer- Gallon Size Unit Treats 2000 Gallons of Fuel - PRI-D-Gallon

I've been using the Pri-G (gasoline) product for years and it's my subjective opinion it is superior to other gasoline stabilizers. Some equipment I have, e.g. commercial pressure cleaner, I only use every year or two and it would start right up with the Pri-G (not so much with the Sta-Bil product). As regards the Pri-D fuel stabilizer, one of my several diesel Mercedes cars is 33 years old and had a sticking fuel indicator (perhaps sludge in the tank??). Use of the Pri-D fuel stabilizer seemed to free up the fuel tank apparatus so that the fuel indicator now works appropriately. I now use the Pri-D in all my diesel cars.

Cost effective and goes a long way. I hope it is better than Staybil, but won't know until next spring when I start my Mecury 115 hp outboard again.

The PRI products are my go to fuel additives. Whether for storage, or for maintenance and MPG effects. Bonus points for seller Brky Guy. The gallon jug of PRI-D was in a box with zero padding. this cause about a quart of product to seep out during shipping. While this could have been avoided, Brky Guy refunded 25% of the purchase price (about what was missing). So they corrected a bad situation with minimum effort. Just some pics of the leakage.

I buy this for my diesel vehicles and buy the gas kind for gas vehicles. It makes the fuel last much longer and will even restore bad fuel.

I own a 2002 Dodge Ram 3500 5.9 Cummins, my truck runs fine, but after adding this within a few miles, once it had made it through my fuel system, I felt a smoothness I am not sure how to describe, I also noticed I could get the RPMs up to 3k much easier in each gear the further I drove… at first before it had cycled in through the fuel system I started taking each gear to 3k RPMs and in some gears it took quite a bit of time… and 4th or 5th I didn’t even think it was going to hit 3k… I just kept doing this… running through each gear and taking each gear to 3k… after I felt that smoothness kick in I literally saw each gear go straight of to 3k without effort… I saw the difference this product right in front of my eyes… by time I had done this… 4th and 5th went to 3k with the same easy all of them did… I recommend this product to revitalize your engine and I recommend you do as I did and watch how the RPMs noticeably change from the moment you get in and drive the vehicle until it starts to work its way into the system you will see the RPMs increasing more smoothly and swiftly… I have no doubt that if you have an older vehicle you will see and feel your engine get younger and more tenacious.

Good stuff, but the packaging was inadequate. The box must have been dropped as the cap was cracked and the fluid leaked into the plastic packaging that it was shipped in. Not much loss of fluid, so I'm not going to return it.

I have been using this for years and have had no problem.

Living odd grid, you want to stabilize your fuel. With as stable as dieswl can be, you have the odd issue that it can and will grow algae in it. Not sure I want to know what kind can grow in diesel, but it keeps the fuel extra good, does it's job well for keeping the fuel ready for use, and as always,bigger the bottle the better the cost!