Cummins recommends that you not use synthetic motor oil during the break-in period of 5000-20,000 miles, based on the type of driving, to allow proper seating of the piston rings. Beyond that mileage it is OK to use synthetic oil. No. DaimlerChrysler and Cummins do not recommend the use of increased flow air filters such as K&N, because they can allow contaminants into the intake that can ruin an engine (scoring the sides of the pistons, etc.)

Yes, there is no harm in using a Synthetic blend or a full synthetic oil. There are many benifits to using a synthetic engine oil, such as ease of starting, lower operating temperature, and reduced component wear. For more information, visit the Mobil 1 site See similar questions...

No, synthetic oils have shown no advantages when used and in some cases have actually harmed engines used in boating applications. See similar questions...

Yes, Rislone works with all petroleum-based motor oils including conventional, high mileage and synthetic. Rislone is also safe for use with PTFE-based engine treatments and will not alter the PTFE coating. See similar questions...

Any engine oil can be used as long as it meets the specifications listed in the engine manufacturer's manual. In addition to flushing your engine after your boat has been exposed to salt water: clean, wash, and dry all exposed metal parts and coat them with a preservative such as WD40. This will prolong the life of the exposed metal parts. See similar questions...

Jacobs Vehicle Systems is not developing an Engine Brake for these engines today. Typically engine brakes are applied to engines of 10.0-L displacement and higher. The Jacobs exhaust brake product is available for the Cummins B5.9, ISB, C8.3 and ISC engines. For more information about the Jacobs Exhaust Brakes for Cummins B and C engines, visit our Medium Duty Exhaust Brake Applications and Performance page, or our Exhaust Brakes for the Dodge Ram page. See similar questions...

This is a somewhat controversial question. You won't go wrong with the factory recommended Yamalube 4 (20W40) or SAE 20W40 type SE motor oil. But can you do better? Whatever you do it seems that you should wait until at least 2,000 miles before doing it to give the engine time to completely settle in. The FZ1 is a wet clutch system and there is some body of opinion that warns against introducing excessively slick oils for reasons of possible clutch slippage. See similar questions...

years or 100,000 miles, whichever comes first. It's important to note that the warranty is handled by DaimlerChrysler, not Cummins Inc. See similar questions...

All motor oils are made up of base oils and additives. In general, fully synthetic motor oils contain non-conventional, high-performance fluids. Semi-synthetic oils (also called "blends") usually use a small percentage of non-conventional, high-performance fluids in combination with conventional base oil. See similar questions...

This is the issue of much debate amongst Model T enthusiasts. My personal recommendation is that if you are unsure of what to use and you don't wish to experiment, use products that are identical or similar to those in existence when your Model T was made and you can't go wrong. That means no synthetic or high-detergent oil. See similar questions...

Generally speaking, synthetic has better properties over regular oils. It doesn't break down as easily and can handle higher temperatures and lasts longer, but you should still do regular oil changes. Once people change to synthetic, most people stick with it due to it's ability to protect engine parts. See similar questions...

Once again, no real best answer here. As for synthetic, GM endorses Mobil 1, so it doesn't hurt to go with that GM uses, however just about any synthetic or dino oil will be fine, as long as its approved to be used in your car. See similar questions...

Yes. The terms “synthetic”, “semi-synthetic” etc relate to the type of base fluid from which an oil is blended. Apart from base fluids, lubricants also contain additives, all of which are synthetic. There are many types of base fluid which may be described as being “synthetic”, each having their own properties and advantages/disadvantages in particular applications. See similar questions...

Yes, Bar's Leaks is one of the only engine oil stop leaks that is compatible with all petroleum based oils, including synthetics. See similar questions...

Crane Cams does not recommend the use of synthetic oils during the initial break-in period for a new camshaft. Use a good quality grade of naturally formulated motor oil during this period. If you choose to use synthetic oil after the engine has been broken in, change the oil filter and follow the oil manufacturer's instructions. See similar questions...

No, Crane Cams does not recommend the use of oil restrictors. The oil is the life blood of the engine, not only lubricating but cooling the engine components as well. For example, a valve spring builds in temperature as it compresses and relaxes. This increase of temperature affects the characteristics of the spring material, and if excessive, will shorten the life of the spring. Oil is the only means the spring has for cooling. See similar questions...

You can find this answer in your engine owner’s manual. If you have trouble finding this, give us a call and we will be glad to help. See similar questions...

Use what the engine manufacturer recommends. Be aware that Kawasaki ® still recommends straight 30-weight oil in their engines, and Kohler Command™ engines require multiweight 10W-30 oil. The man who hired me here at Exmark, over 15 years ago, always said "the cheapest thing you will ever put in that engine is oil. See similar questions...