Diesel engines require specialized injector cleaners from petrol engines. With Common Rail Fuel Injection Systems that operate on high pressures in every modern diesel engine being released in the market, there is a heightened sensitivity in the petrol system of these vehicles.
Unlike petrol where it is common to see additives directly mixed into the fuel, on the other hand it is more often than not, a pure unrefined product. Although in compliance with the EPA, it has undergone some changes in the last few decades churning out low sulphur and ultra-low sulphur variations.
Despite these advancements in the composition of newer diesel engines and fuels, carbon build-up within the system is inevitable. After prolonged use, wear and tear of the engine should be expected despite using the top-tier line of fuels. Alan, a friend of mine who owns a 1998 Mitsubishi Pajero with a 2.5L engine is a Shell purist and uses even their winter blends.
According to Gary Pipenger, president of Amalgamated Inc., any additive in it is usually unnecessary especially with the miniscule amount of the substances mixed with the petrol. Most of the time, these are used as marketing gimmicks to outdo the competing brand.
Problems caused by carbon deposits
- Reduced economy
Less miles for more gas is very costly for the consumer. And with clogged injectors, it the volume and spray pattern of the petrol is compromised leading to an inefficient petrol burn in the combustion chamber.
- Decreased horsepower
When carbon deposits accumulate within the petrol system, not only does it produce less miles per gallon (mpg) but also inhibits effective combustion. When the it is not burned efficiently, there is a loss of power. The remaining unburned collects and hardens into a rock-like substance.
- Engine-related problems
Pinging, knocking and even lean misfire are caused by a dirty fuel system. My friend, Alan noticed hesitation on acceleration with his Pajero. Upon further inspection, his truck had never undergone any cleaning treatment of any kind. Other problems his Pajero experienced were prolonged and noisy start-ups.
The least costly among petrol system cleaning treatments, additions offer a quick DIY fix to injector-related problems. With a single bottle enough to treat over 20 gallons, additives are a popular solution to pesky carbon deposits.
- Maintenance properties
Apart from cleaning petrol injectors, diesel additions also have the ability to prevent future carbon build-up. Oxidation that causes rust and corrosion is also inhibited per treatment. The recommended use of additions depends on the product. Some along with expert advice will prescribe to dump in a bottle every thousand miles or so, while others will instruct to be used regularly with every fill-up. Alan only applies an additive every 3,000 miles to clean the system.
- Deep penetrating solution
Although they are exactly that- additives, their concentrated formula has worked wonders on a variety of diesel-dependent engines. While certain cleaners like the 24 FPPF Treatment have special features such as dispersing water from it and being low sulfur fuel compatible, the main thrust of these products is to dredge the injection system and its neighboring parts.
Diesel engines may need an extra boost in power and efficiency. With a number of treatments available, additions are provide a quick fix with the lowest cost to injector-related problems. Cleaner emissions, improved petrol economy, increased horsepower are just a few of the benefits of applying additives to treat a system.