nevadanick wrote:
Who can provide proof of an oil related engine failure ? It simply isn't that big a deal nowadays what brand you run.
You've never lost a turbocharger that coked up in the bearing area, grenaded, and takes the whole diesel motor out as collateral damage in the process. Think oil leak, zero clearance head on a TDI, and oil causes at first a runaway motor, until so much oil gets in you get hydraulic lock and you crack the piston or bend the connecting rod, or jam it into the bore of the block and out the side.
Petroleum based oil has done that to plenty of turbo's and motors. Synthetic and coked bearings on turbos are quite a bit less infrequent. One needs to understand that Mobil 1 synthetic was originally designed to handle the heat in turbine and jet engines, where the bearing operating temperatures are much, much higher. Turbo bearings, when non water cooled as in most turbo diesels, are in that heat range too, from the heat passed from the impeller on the exhaust side going through the shaft of the cartridge bearing, where the oil floated bearing is located. Oil in that region carries the heat away from the shaft. Synthetic does it better.
I let the manufacturers of motors make the oil recommendations.
When you are making a lot of HP or a lot of torque out of a smaller engine block, heat on oil and stress levels on oil is high. I want the biggest saftey margin I can get. The RAM ECO Diesel PU is in that class, as a small travel trailer TV. 3 liters pulling 8000 lbs of trailer max, is high stress.
LY318... One motor oil that many have commented as quieting lifters and quieting motors in general, is German Castrol 0w-30 or Green Castrol 0w-30. It might be a version of Castrol Edge nowadays. You have to read the fine print, it's usually labels Euro formula, and it is always Made in Germany. It is still PAO based, pretty much a must for any 0 weight oil to be loaded with synthetic base to get the viscosity that low. Available at AutoZone, find it when it goes on sale.