API CJ-four Diesel Motor Oils - A Have to For 2007 & 2008 "On-Road" Heavy Duty & Choo

If you or your business owns 2007 or 2008 diesel pick-ups or "on-road" heavy-duty diesel trucks, you may possibly be asking yourself why the truck manufacturer is so adamant about making use of motor oil that meets the American Petroleum Institute (API) "CJ-4" specification in the engine. You might be questioning if you can "get by" with a motor oil that does not show this designation on the label. The answer is NO! You cannot "get by" with a diesel engine oil meeting the older API "CI-4" or "CI-4 PLUS" specifications in these engines. There is a high probability that pricey harm will be the outcome if you try.

How did all of this start? A few years back, the U.S. Environmental Protection Agency (EPA) decided that starting in the 2007 model year, strict new limits had been going to be placed on the emissions of on-road diesel engines in heavy duty and choose-up applications. This would limit the quantity of nitrogen oxide and particulate matter emitted by the exhaust pipe. The EPA determined that via a mixture of engine redesign, ultra-low-sulfur diesel (ULSD) fuel and new engine oil technologies, these new vehicles would cut harmful pollution by 95 percent.

The most vital of these engine modifications are the addition of exhaust after-therapy devices and increased exhaust gas recirculation (EGR) rates. Both of these alterations demanded a significantly various approach to formulating a diesel engine oil.

The exhaust following-therapy devices being utilized are "diesel particulate filters". These particulate filters get rid of soot from the exhaust permitting for a lot cleaner emissions. Collected particulate matter is cleared from the filter by burning it off at elevated operating temperatures. Older generations of diesel engine oils contained additives which can plug or harm particulate filters. The new CJ-four engine oils have strict limits on sulfur, sulfated ash and phosphorus content. A plugged or damaged particulate filter is not only quite expensive to clean or replace, it can trigger severe drops in fuel economic system due to increased back pressure.
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An additional critical change mandated by the EPA was to lower the sulfur content material of diesel fuel by a whopping 97%. Starting in September 2006, the sulfur levels in diesel fuel (for on-road use) had been restricted to 15 elements per million (ppm) from 500 ppm. This was carried out so that the fuel would not harm the new exhaust following-remedy devices. This was a concern to many as sulfur was a crucial additive that supplied lubrication to fuel pumps and injectors. The fuel firms were not mandated to replace the sulfur with yet another component to give pump and injector lubrication. It is a very good thought to add an aftermarket fuel additive to your diesel fuel to prevent premature pump and injector wear. This is a excellent concept for all diesel engines utilizing ULSD fuel. Make certain that the additive is designed to provide fuel program lubrication and that it is compatible with exhaust particulate filters and ULSD fuel.

With the exhaust filter removing the particulate matter from the emission, the process of removing nitrogen oxide is accomplished by increasing exhaust gas recirculation (EGR) rates by as a lot as 35%. EGR devices redirect some of the exhaust gases typically emitted via the exhaust pipe, back into the engine. This rate improve generates far more soot and acids as well as escalating operating temperatures. This was yet another reason for the radical modifications in the style of the CJ-4 specification. These new hostile operating conditions call for that the engine oil have a better resistance to heat, a greater dispersant package to deal with the greater levels of soot and a better capability to avoid depositing and oxidation. CJ-four oils are also less volatile which means that they are a lot more resistant to consumption.

CJ-4 oils will provide the ultimate in efficiency and protection for post-2007 diesel engines. To remove the nuisance of fleets having to stock distinct diesel motor oils for trucks built just before and following the 2007 model year, CJ-4 oils are created to be "backwards compatible" with pre-2007 diesel engines. Fleet owners can stock only a single CJ-four diesel motor oil to service all of their diesel trucks.API CJ-four Diesel Motor Oils - A Have to For 2007 & 2008 "On-Road" Heavy Duty & Pick-up Diesel Engines