Diesel Fuel Treatment PRI 16D

I have a 30 gallon storage tank for diesel for my tractor and this is a must have. I also use the same brand that’s for gasoline for my tank that fuels my lawnmower. I’ve personally used diesel that was well over 2 years old with this product and it runs just as good as if I’d bought the diesel that day. It’s much better than stabil because you can actually add it to fuel that’s already been in storage, and it’s still effective. With stabil, you must add it when you purchase your fuel.

Appears to be a great product. I have heard good things about it. Good value I suppose. Easy to use. No mess while using it.

Got this just before winter to help preserve my supply of heating kerosene through the season. As it's too early to know it this stuff lives up to its claims, I may update this sometime around springtime, or later if I end up with kerosene left over. (According to the literature, it's supposed to keep diesel/fuel oil/kerosene in like-new condition indefinitely as long as it is re-treated every 6 mos, assuming proper storage conditions.) One good thing I will say about it right now is that a little DEFINITELY goes a long way. So one bottle will certainly treat most peoples' heating fuel for the entire season. Check this review again in a few months...---Follow-up--Spring 2011: As it turned out I ended up with about 20 gallons of kerosene leftover from the previous heating season. Per the manufacturer's directions, this was re-treated at the six month mark--last summer--then again this past December, and was used this season just ended.The verdict? It works as advertised! The treated one year-old kerosene burned as well as fresh fuel. Wick fouling was no worse than any other kerosene used in my heaters. My only criticism is the dark red color of the stuff, which tints the fuel it's put into a very noticeable yellow. For kerosene that is already dyed this is no issue. For clear kerosene, however, this effect eliminates the ability to see deterioration--as degraded or contaminated kerosene often becomes yellow. But on balance, this product lived up to its claims, and I will be a repeat customer.

GREAT PRICE HAVE NOT TRY YET

Seems to keep this old truck running smoothly

As per one website, I used this in my kerosene. Didn't work too well there. The wick deteriorated in a few days. That is, it fused and had to be replaced.

Pri has been around for a long time. I use this for long time storage of diesel fuel. Keeps it fresh and clean. I will also use this in my older truck and equipment to help with lubrication since the fuel is all low sulfer.

Pri-D and Pri-G is simply the best additive you can buy, along with Seafoam of course. My overall experience with the D and G is totally positive. It helps stabilize the fuel and a little goes a long way. My only negative which has nothing to do with the product is the packaging. Mailing liquids is not always a good idea...things tend to leak.