I have an aging bmw diesel. 120k now. First I had a check engine light for the cylinder 2 injector. I changed the filter have ran this with every fill up and the light has gone away. I’m also getting 5 mpg better since. I haven’t done anything else. I’m not sure this is supposed to do that, but I’ll keep running it since I’ve had great results. Been gettin 36 mpg, and 550 miles per full up on a completely stick x5 35d

After using the product the second time my fuel economy increased from 14 L/100 to 12 L/100, definitely worth the purchase where I average 10,000 kms per month, definitely recommend.

I’ve been using Amsoil since 2001 - more of the same a great product. I no longer have a diesel truck, but I do have the 80 gallon auxiliary tank and a diesel tractor - and it’s 100% Amsoil. I use the tractor to mow my lawn, landscaping with the front end loader and snow blowing 400 feet of driveway as well as have a generator for the PTO.

Got a Refreshed 2022 Silverado 155 w/the 3.0 Duramax. I really like the truck. Being a diesel mechanic I realize that the fuel sometimes isn't treated for the temps so I throw a bottle in every fill up during cold weather to keep the fuel from jelling. It also help keep the injectors clean and up the cetan a bit. I've also noticed a slight bump in milage

Try this for for month , start to see difference

Allowed a better mileage, cleaner burning fuel and definitely better flow in cold.

I have 8 diesel cars and trucks and use Amsoil Products in all of my vehicles. It is supposed to be -3 degrees in the next several days and I have trusted the ant-gel additives and we ran well last year at -3 degrees and no diesel gelling! Thanks! Jim Kyle in TN

Have not had any adverse effects or jelled fuel using this product. As for the other stated benefits?

Winter is hard on diesels and all in one covers it's shortcomings. Cleans, lubricates, stops waxing and increases cetane index. My Ford is a 1999 and runs like new on Amsoil.

Must have for any diesel during winter time. The extra protection of no fuel issues during winter is a must.

I also trust this product in my 2007.5 chevy 2500hd LMM DURAMAX in both summer and winter. Thanks.

This is a great product and I feel better when I use it. I believe I get better fuel economy but haven't checked closely enough to know for sure.

Seems to work as advertised. No issues.

I use this product in the winter and Amsoil injector & cetane boost in the summer. No issues what so ever.

Use this in my L5P Duramax and it's a perfect all in one diesel fuel additive

Great product

Just started using in my wife’s truck and it really shows in the cold starts.

It’s still early in the season so I haven’t had the chance to try it, but everything made by Amsoil seems to work like a champ, so I bought it to have just in case it gets cold enough for it…….and it’s getting close!!! I use my block heater to keep the engine warm and the moisture out of the oil and interior of the cab. I’ll be sure and write a review when the time comes!!!

tout simplement un incontournable en hiver Québécois!! Mon truck démarre à -30 sans être branché!!

Used it in the Cummins Diesel Ram and noticed the performance of easier starts in the morning. Ran a second tank through and upon closer inspection mileage increased. I'm a believer