Posted by Janicholson on February 20, 2021 at 08:09:39 from (24.240.46.228):
In Reply to: Engine oil posted by 1850joe on February 20, 2021 at 07:35:11:
Four actual changes have created the dramatic improvement in engine life we now find common 1 The removal of lead from gasoline (nearly no deposits in combustion chambers and 100K mile spark plug durability) 2 The dramatically better engine oil with proven multi viscosity, detergents, corrosion inhibitors, and synthetic structures 3 Fuel injection and computer controlled operation 4 Metallurgy and manufacturing precision
The oil is very important in that there are two critical pathways. The first is that car engine oil has changed to provide longer life to catalytic converters and roller cam/lifters at the expense of friction reducers needed in flat tappet cams and rubbing wear points found in older engines. Therefore using modern diesel rated oil (15-40) has been widely endorsed here on this forum. The non-detergent oil in your tractor may have lead to sludge buildup and could require a rwmoval of pan and valve cover to physically remove the gooy mess. I believe there are no seal issues with new diesel grade oils, traditional or synthetic.
If you want to keep using the oil you are using I would change it 2 times a year, or once if it is used only a few hours a minth. If it were mine I would pull the pan and cover, rinse and remove all sludge, then use 15-40 in it. modern oils are so much better than the old single wt. oils that keeping old iron operational depends on it. Jim
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