Quote:
Originally Posted by Dino's A
As far as soluble oil goes, I have seen it work very well. My fathers Model A set idle for about 20 years with a mixture of soluble oil / distilled water. When I removed the radiator, the radiator shop wouldn't charge me a dime because it was clean. I run anti freeze now, but always wondered how much soluble oil should be in the water. What's the mixture? Anyone know??
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The mixture varies based on the oil company's recommendation. Texaco Soluble Oil D for example is recommended at 40 to 1.
Forty years ago on back and a few people even now, pour in a can of water pump lubricant along with their antifreeze and water mix in their modern car. Water pump lubricant is soluble oil. It is sold in auto parts stores under the names: Gunk, Johnsen's and Bar's Leak.
Nowadays, however, in my opinion, the antifreeze provides enough lube for water pumps and the extra soluble oil is not needed.