Diesel Fuel Treatment PRI 16D

New to using this but so far so good. Time will tell.

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.

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.

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.

It rejuvenated a barrel of diesel that I had been storing for a couple of years in my garage. I called the company and they suggested using twice the normal ratio, since I had not added any treatment previously. I added 2 ounces to my 15 gallon drum, mixed it thoroughly and then put it in my 2005 Dodge truck. It ran like a charm. In my opinion, this is an outstanding product!

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.

Hubby uses this all the time in his equipment. Received quicker than expected. Would buy from seller again.

Great product. I have repurchased several times. It works