"You can add Diesel Tech magazine to the long list of testimonials as we're now believers in Archoil too.
"Improved fuel economy, smoother running engine and no issues with cold starts."
Awesome product! Mileage is up and regeneration happens about every 375-425 miles. Once in a while around 300 miles but not often. Very happy!
After 3 months after I brought my 2005 F-350 6.0LCC SRW I noticed hard cold starts & a stiction issue with my injectors. As a first time diesel & 6.0L owner, I did my research and Archoil’s products came up as the go to problem solver. I bought the AR9100, AR6500 & AR6400-D. Changed my oil, fuel filters, put in fresh full synthetic oil and the Archoil products. After warm up to operating temperature, my truck ran smoother & quieter! Every cold start afterwards was smooth & easy.
4 years later, I still add Archoil’s products at every interval! I do oil analysis & have been able to extend the interval each time! Archoil has a customer for life in me.
So far works great, less exhaust regeneration issues.
So far I am impressed. Almost 99,000 miles on my Duramax and it feels like it is running smoother. I am not through my full tank yet so things are looking good. Thanks.
Love this product, seems to work great.