Hot Shot's Secret EDT+ Winter Defense 8oz, 7-in-1 Anti-Gel Diesel Fuel Additive – Prevents Gelling, Protects Fuel System, Diesel Additive Improves Cold Starts, Boosts Cetane

Use evey fillup. A little goes a long way. This company is legit. They do the science work to bring out the most of every product they produce. I've done the research and take it from me you can safely settle with HOTSHOTS products. Science proven! I use in my Ford 6.7 Powerstroke. It's important to add lubricity to preserve your high pressure fuel pump. American diesel lacks the lubricity now due to low sulfer requirements. BOSCH makes the CP4 fuel pump. In Europe their fuel is better. Here in the US we need to add lubricity. 2% biodiesel is actually the BEST lubricity you can attain! Many fuel stations use 5% bio-diesel. You'll have catastrophic fuel system failure if you don't use lubricated fuel in your 6.7 Powerstroke. That's a 7-10k bill! No joke.EDT gives at least 5 benefits. Next best reason to use this every fill up is the added cetane boost. They figured out how to get the most performance boost per dose. It makes a noticeable difference in my VW Jetta TDI. YOU CAN FEEL IT by the seat of your pants.Highly recommended. It's my go to.

I watch Project Farm on YouTube and he's very good and honest about testing products. He tested diesel additives and this was the best, enough said.

I've been using this product for a few years now, and it has significantly improved my BMW 335d M Sport. The engine runs smoother, the mileage has increased, and it's much quieter overall. After using it, I was able to eliminate the smoothness error on cylinders 3 and 6. Since then, I follow the instructions and use it with every fill-up. My diesel now has 147k miles on it and still runs like new with 44 MPG highway and 32 MPG combined.

I noticed a difference in starting my 2005 F350 when it is really cold. Also seem to run a little smoother.

Like this product

I use this on every fill. I feel like I get about 1 mag better with it. So really cost me nothing to use

Works as advertised.

This is a good product to help lessen the gelling of diesel in my Ram 2500. Good product can help it from freezing up which I have had happen,