amsoil synthetic diesel oil
Which engine oil is better???
Which oil is better for an 6.5L DIESEL egine that REQUIRES 15W-40 Oil. I am having a hard time deciding between Amsoil Synthetic Heavy-Duty Diesel Oil and Mobil Delvac 1300 Super. I can’t figure out if the Mobil Delvac is synthetic or not. I’m not even sure if synthetic is the best way to go in diesel engines. Any advice would be greatly appreciated.
Mobile does make a diesel synthetic – Delvac One. It would be 5w40 weight and would be an excellent oil. You will probably only find it at truckstops. The main reason to go with synthetic is for cold weather starting and operation. Don’t be afraid of the 5w40 designation, it fully protects at the temps a 15w40 would. Otherwise if severe cold weather is not your issue, any quality diesel oil sold today surpasses the requirements for your (older) diesel engine. Mobile Delvac, and Shell Rotella are both good choices.
One issue with a full synthetic is that if there are any oil leaks, the synthetic will find them.
Also realize that there is no consistent definition of synthetic. From my understanding, both Mobil and Amsoil’s synthetics are “real” synthetics. A real synthetic will be $4-6/qt.
Powered by Yahoo Answers
Pennzoil 550022576-6PK Ultra 5W-40 European Full Synthetic Motor Oil – 1 Quart (Pack of 6)
Today’s tighter-tolerance engines require a motor oil that keeps them as close as possible to factory clean. Because the tighter the spaces between critical engine parts, the more crucial it is that the oil keeps those surfaces clean and protected. Even small deposits can make a big difference in performance. Pennzoil Ultra with Hyper Cleansing Technology is a proprietary full synthetic motor oi…
Valvoline SynPower Full Synthetic Motor Oil SAE 5W-40 – 1 Quart Bottle (Case of 6)
Valvoline’s SynPower Motor Oil – Delivers the ultimate performance kick. SynPower motor oil and automotive chemicals are the only full synthetic line of products that help your car achieve its performance peak. The key is Advanced Synthetic Technology which cleans and protects to put a kick into your driving experience. SynPower meets the demanding performance requirements for BMW, Corvette, Lexus…
Mobil 1 96989 0W-40 Synthetic Motor Oil – 1 Quart Bottle (Pack of 6)
Mobil 1 0W-40 exceeding industry standards and the major leading builder requirements is the cornerstone of the performance reserve that lets Mobil 1 0W-40 keep performing well after conventional oils cannot. Mobil 1 0W-40 provides the widest range of protection — providing the extreme cold start protection of an 0W grade and the high temperature protection of an SAE 40 grade. Mobil 1 0W-40 meet…