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Your cart is empty.Red Line's 85 Plus Diesel Fuel Additive Treatment is designed for use in all diesel engines and contains extremely powerful lubricants, detergents, seal conditioners, fuel stabilizers and rust preventatives, but without smoke suppressant. Red Line 85+ contains additional cetane improvers which boost the fuel 5-9 cetane numbers and additional lubricants which reduce wear in low sulfur fuel by 75 percent. This improvement in lubricity and cetane will reduce detonation, assist starting, help reduce smoking, help prevent fuel system wear and leakage and can provide 5 percent additional power and efficiency. This diesel fuel additive complies with the federal low sulfur content requirements for use in diesel motor vehicles and nonroad engines. Extremely powerful high-temperature detergents clean fuel injectors. Lubricants significantly lengthen injector and pump life and reduce ring friction which is very important for today's low-sulfur fuel. Both Red Line Diesel Fuel Catalyst and 85 Plus are available as a winterized version which will reduce the pour point of a typical fuel by 25 degrees Fahrenheit.
Mauro Mascazzini
Reviewed in Italy on April 17, 2023
Non ho provato molti prodotti di questo genere per poter fare dei paragoni, ma questo funziona indubbiamente. Riscontrabili tutti i benefici promessi.
Slipstreampilot
Reviewed in the United States on June 13, 2020
I have all but converted all my vehicles to Redline products from Amsoil. This product played a small but integral part in that decision. With respect to this product, my fuel mileage is on average 3.2 mpg higher than when compared to running any of the Amsoil diesel fuel products.My 2011 BMW 335d (d for Diesel - 3 liter inline 6, compound/sequential turbo) is not stock, and producing almost 38% more torque than stock. I ran both the pre-mixed and individual Amsoil diesel fuel products and I never experienced any improvement in performance or mileage. However, I took it on faith there was at least some benefit to using the products - after all, I was an Amsoil dealer.I have used Redline SI-1 Gasoline fuel treatments in my Honda S2000s for years (please see my review), initially because of a recommendation from a trusted friend (and tribologist), and then experienced first hand notable improvements over Amsoil’s PI in both cleanliness and performance. I eventually discovered Redline also made a series of Diesel fuel products, and decided to try this one. Over the last 30,000 miles, the improvements over the Amsoil products I had used for the previous 35,000 miles was noticeable and measurable.Amsoil used to provide a premium product at a price point lower than Redline products. Unfortunately, their product has declined since the founder passed and his son took over - and their price has creeped up over the past 5 years. Redline has always made a top-tier product, and I haven’t seen a decline in the product quality even after they were bought out by Phillips 66. What is also notable is that the Redline has maintained basically the same price point (Increased less than inflation), quality and performance is still top-tier, and their products actually provide the benefits they advertise. All of my cars now use Redline engine oils. I still use Amsoil’s gear and transmission oils at this point.
Seattle Sue
Reviewed in the United States on February 1, 2016
I drive a Ford F-250 Super Duty. Some years ago, I had problems with the injector plugging. The mechanic told me that the low-sulfur diesel needs a lubricant. I'm on my second case of the Red Line 85 Plus and haven't had any injector problems since I started using it.I believe there has been an improvement in mileage as well, but that can be hard to say for certain. I used to drive it to work which was fairly easy driving. Now I do things like haul hay or horses in some mountainous areas and my mileage drops a little. I don't do a lot of easy highway driving. With the cost of new trucks, I'm happy to do what it takes to keep this one running smoothly.I like the way the bottles function. The inside seal has a pull tab that makes it easy to open. It's a little thing, but I really appreciate the detail. The bottle is just the right size to fit in a cup holder inside the back door, so it is conveniently available when I fill up. The top of the bottle fits nicely in the fuel fill hole without spilling.It's a good product that has serve me well and I've found no reason to change brands.
M Watkins
Reviewed in the United States on December 28, 2016
I would highly recommend this product! I purchased my first bottle at NAPA because I was looking for something to raise my cetane level, remove water, lubricate and clean my injectors. I used the full bottle the first time and could feel a noticeable increase in power, it also immediately fixed a intermittent chugging up hills on cold days. Believe it or not, I did a burn test like the ones on youtube, and found that it burned cleanly and left a large amount of oil lubricant after it had finished burning (just like it should). So I ordered a pack of 12x12 ounce bottles on amazon and plan on putting in a full bottle with every fill up (easier than using the one gallon jug) . I am also running Mobil 1 Extended Performance 5W-30 Motor Oil and Turbo Maxx Best Stiction Stopper Oil Additive (some testing indicates it's better than Archoil, but more expensive).
Roelf Kars Janssen
Reviewed in the United States on May 27, 2013
When I first started using RedLine 85+, I did not notice any difference in my 2011 Ram 6.7L Cummins Diesel. I started off putting a full bottle in my 35 gallon tank and did this again the second time. After that I used roughly a third bottle every fuel up. After having gone through about 6 bottles, I started paying closer attention to my fuel mileage, and realized that my mileage had gone up considerably. Before I started using RedLine 85+, my average highway fuel mileage was 17-18 mpg. Now my average highway fuel mileage is 22-23 mpg. City mpg is now around 18 as opposed to 14-15 as it used to be.I am very impressed with this product.Not only did it improve fuel mileage, it also increased power and increased engine knocking. (Engine knocking never was bad to begin with, but my truck runs quieter now and sounds more even and smooth.)I would recommend it to everyone. It saves me about $0.05 per mile.Start using RedLine 85+, and feel the savings!
Jim S
Reviewed in the United States on January 13, 2012
I normally get about 14.5 mpg city with a little highway driving on my 2005 Chev. 3500 diesel, initially I put a full bottle in. When I refueled my DIC indicated 15.4 mpg, which was an increase of almost 1 mpg. The 2nd fill up the directions say to use 4 oz. which I did. So far the DIC is indicating 15 mpg, so it is down somewhat from a full bottle. My next fill up i am going to put a full bottle in and see if the mileage goes up, if it does I will have to decide if the added mpg of the full bottle is worth the added cost. If I can add to this review at a later date I'll let you know.
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