Synthetic motor oil features a significantly higher resistance to thermal breakdown, chemical breakdown contamination from fuel dilution and exhaust soot , and mechanical breakdown shear. It is backwards compatible with ALL engines regardless of age and type.
When the engine oil has drained completely, reinstall the drain plug. Install drain plug snug; do not overtighten. If the drain plug seal is compromised it should be replaced. There is no need to overtighten the oil filter, simply snug it up as tight as possible by hand. More From Diesel Hub. Fuel Dilution in Diesel Engines. Fleetguard FL all 5. Ben Davis April 10, What kind of oil does a Ram diesel take?
What oil does 5. What oil does a 12v Cummins take? How often should you change the oil in a Cummins diesel engine? Can I switching from 15W40 to 5W40? What oil is thicker 5W40 or 15W40? Is 5W40 good for summer? Will 5w40 hurt a 5w30 engine? Is 5w 30 better than 5w40? Which oil is thicker 5w30 or 5w40? Can you switch from 5w30 to 5w40? What happens if I put 5w30 instead of 5w40? Can I use 10w 40 instead of 5w40?
Even though the 5. Viscosity has always been and will continue to be the most important factor when choosing motor oil. It affects heat generation and wear, governs the sealing effect of motor oil, and determines how much energy it will take to start and keep an engine running under various temperature conditions. This is one of the reasons why engines are harder to start in freezing temperatures. To make oil viscosity easier to understand for the buyer, the Society of Automotive Engineers SAE developed a scale for motor oil viscosity ratings called oil grade.
The engineers at Cummins spent painstaking hours testing different grade motor oils in order to find what works best. Synthetic motor oils have a natural ability to maintain similar viscosity during temperature changes. Alongside better protection against wear, synthetic oils reduce the amount of energy that is needed to start the engine and keep it running, which increases the efficiency of the engine and ultimately gives you better mileage.
One of the main disadvantages of conventional motor oil is its high volatility. Nowadays, pretty much all diesel engines have a turbocharger that gets really hot under heavy loads, and if you shut your engine down and stop the oil flow while the turbo is pretty much red hot, the leftover oil inside the turbo will start boiling.
However, if your 5. The only requirement apart from the correct viscosity for the 5. Engineers at Cummins have noticed in the past that high ash content motor oils would produce deposits on valves to the point where valve burning occurs, therefore Cummins recommends using motor oil that has maximum sulfated ash content of 1. Most if not all API certified engine oils already have all the additives your engine needs, therefore you would only make the additive ratio too high, which could only harm your engine.
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