We’ve had very cold weather. Coldest was -13. I have had no issues with starting and changed my fuel filter yesterday with no signs of gelling with my 2024 gmc with 15000 miles with a 3.0 duramax

Excellent product thx guys

Works great for me!!!

Works as intended. Keeps fuel from gelling in the cold and helps a ton with a cleaner burn.

Great product!

Great product!

I have had good results with All in one diesel fuel additive. We tend to have cold wet winters in rural north Idaho. I don't know what additives are in the fuel at the pump. I run all in one and have had good results. ULSD in this country is alleged to lack lubricity. Emmissions add to the complications and injector pump failure is not unheard of. The fuel system is possibly the most expensive system on the truck to repair/replace. It's easy to order and delivery is lightening fast. I am a satisfied customer. Thank You.

A few treatments in and it seems to be working fine. Really all I wanted was to reduce the chance of jelling and anything else is extra. We'll see.

Pour les diesels en hivers permet de protéger et assure un démarrage sans faille peu importe la température hivernale

If you drive a diesel in the US you should use this every fill up

I add the cold flow as I know quality fuel companies put it in the diesel in winter months, but for me it’s peace of mind.

Même par temps très froid, je sais que mon diesel partira même pas branché... Un petit plus pour ceux qui traite leur diesel aux petits oignons!!

I’ve been using this for a few years now. Many so for the anti gelling feature. But over all I can see an increase in my fuel economy when using it.

Keep the Duramax and me both happy

Very good product I used in all my trucks

I ve gained about 3.5 miles per gallon towing my fifth wheel that’s 21000 plus.

I honestly believe that this product has increased the performance of my diesel truck. I would recommend it for anyone who has a diesel truck and wants to increase the performance and efficiency of it.

This is the 3rd diesel truck I have owned over the past 20 years. I started using this oil after being re-introduced to the newer and better way to access getting Amsoil products. I have been a long time fan of Amsoil, as I was in the racing community in the 60's -2000's running USAC several divisions and the NASCAR Modified and Super Modified divisions. I had Amsoil as a sponsor for many years of that time period. I stopped using Amsoil after racing due that it was so difficult in finding someone who sold it and would not want to sell you large quantities, if you wanted to buy if for a normal consumer need. Once I found that I a general consumer was able to purchase it from your website and become a discount customer I was all in. I did this in 2015 and have converted all my vehicles to amsoil products. I use the Cetane Boost in my vehicle year round, and from late October - Mid March I use the All-In-One to keep the cold weather issues from effecting my ability to operate the truck. It has been great this will be my 8 year 7th winter in Texas and I have had absolutely no problems or even any peculiar situations that may indicate any problems were possible, anytime I have had the All-In-One in my Truck. It is a 2012 Ford F350 6.4 Powerstroke.

Working great

if you’re not adding this additive to your fuel, you’re losing mileage. I had been using Achoil, and this smells just like it. Increase mileage and a clean running engine as a result. Buy it.