I bought this motorcoach with 12K on the clock in 10/2011 & currently have 58K on it & have used Diesel Kleen religiously in every tank fill & have not had one issue with this Cummins. It does sit stored for the winter from Oct. to May & starts up like it was new every time!! This coach also has a Hydro Hot whole coach heating & hot water system that is run by a diesel burner too. I see many owners of these systems that have constant issues with the nozzle on the diesel burner not working due to fuel issues & tend to change them out every year. Not me I’ve never had one issue with it. it also fires right up every season start as well as trouble free all year since I got this coach & I attribute it to the Diesel Kleen keeping my system up to par!! Good Stuff!!!Jack W. Omartin
I ordered my truck new and the first tank I did not use the power service additive but and after doing some research on diesel fuel and additives which included calling Ram and Cummins they did both say that it would help and would not void the warranty so I decided to give it a try. I added 12oz to 32 gallons and I have to say it did help with start ups. fuel economy and throttle response. I did not want to jump to a conclusion so 3rd tank no additive and I could tell right away. The 4th tank I added 20oz to 32 gallons and wow it is like a different truck. I can tell it is burning clean and don’t even have any diesel soot in my exhaust pipe which still looks new. I am getting about 21mpg on the highway and averaging about 18mpg. I get about 1-2 mpg better with the Power Service silver bottle. I would guess it is worth the money with the extra mpg’s but to me it is worth it just for how much better the truck runs. I did buy the winter version but have not tested yet.Owasso, OK
I recently started a hot shot business with a 1999 F450 7.3 Power Stroke. When I left out on my 1st load, my truck was running fine until I hit the Pennsylvania hills, it was sluggish and didn’t sound right. I stopped at the TA in Harbor Creek and bought Diesel Kleen. I didn’t notice anything for a couple of hours. I came up on a hill that looked like Mt. St. Helens! That is when I noticed the difference in the engine. I climbed that mountain like it was the bunny hill at the local ski resort! When anyone asks what I do to protect my engine, I tell them I add Diesel Kleen every time I fuel up!Owner, Klinks Trucking
I’ve got 510,000 miles on my 2008 GMC Duramax! I’ve ran Power Service faithfully every since buying this truck from my son at 196,950 miles. I run a mixture of Power Service and Dexron automatic transmission fluid! My injectors are all original equipment! I run an Airdog lift pump and my truck runs as good today as when I first bought the truck! My father started using Power Service products in.our John Deere 4020’s in 1970 over 50 years ago and you might say it’s a family tradition!Kent Watson
I first used this when driving a tour bus all over the western USA. Never failed to get me going on cold days. After buying my Ram new I decided that this is cheap insurance against failure from the lack of lubricity in ULSD. 81k miles later no failures, no failures to start. Every time I fueled up, I add either the white bottle in winter or gray in summer. Others claim to be better, but over 20 years of experience says I will never change from Power Service.Daniel O’Connor
You guys are the best!!! Saved me numerous hours of hard labor in cleaning out my Diesel tank. I recently purchased a 20 year old boat which had a 140 gal fuel tank filled with thick slime and varnish. I was sure I was in for days of hard labor to clean it out. Bought a couple of bottles (32 oz) of CLEAR-DIESEL, this stuff is magic, it’s like Windex for diesel slime, sprayed it on, the Slime/varnish melts off. I can’t tell ya how much time I saved. Did the whole job in 5 hours.
Have been using Diesel Kleen since my 2007 Dodge 2500, 5.9L Cummins was new. Injectors replaced at 311K miles; dealer could not believe they lasted that long. Engine runs like new. Truck has 365K miles on it. Averages 20MPG on the freeway. Great product. Thank you.Patrick Florenti
I’ve been using Diesel Kleen in silver can in my Dodge 2500 Ram no engine problems since the truck was brand new. No sediment build up in fuel filter fuel and mileage runs from 18.5 miles per gallon up to 20.0 per gallon. I stand by this product and never use any other additives but Diesel Kleen truck has 275000 miles on it and engine has never had a wrench turned on other than routine maintenance.Michael Yonn
Ridge Spring, SC
Use Diesel Kleen every tank since I purchased truck with 196,000 miles several years ago. Got 322,000 on original injectors before changing them out. I credit the use of Diesel Kleen along with good filter and maintenance. Thanks Power Service for a great product. Cummins may endorse it, but so do I.John Andrews
I just realized I have lost 25% on 5 years of fuel expenses on my 3/4-ton dodge! For the last five years I have been getting 16mpg (hand calculated). Spoke with ‘Cleetis’ who runs his cummins for work, and he recommended Power Services–dumped 100gal treatment into 30-ish gal. Drove 300mi today and filled up. Hand-calculated and 20mpg!!!!!!!!!!
Thought it was only for powerstrokes… wow—thanks!!!!