Larry Dowell
Junior Member
I am replacing the water in my Radiator and was wondering how much oil should I use in the 3 gal. of water
soluable oil
- Thread starter Larry Dowell
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dave in australia
Well-known member
Is this to lubricate the original style water pump seal?
Tom Endy
Well-known member
Earlier this year our club bought soluble oil in gallon containers from Napa. If I remember correctly we bought five one gallons. We broke it down into 16.9 oz containers and sold it to club members for $4 each, enought for three radiator fill ups.
According to the label about 6 oz for three gallons of water.
Tom Endy
According to the label about 6 oz for three gallons of water.
Tom Endy
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Purdy Swoft
Well-known member
I buy water pump lubricant in small bottles from advance auto parts. I don't have a bottle handy to check but 6 oz. sounds correct. I build my own leakless pumps. The pump in my 31 tudor makes a chirping squeak if I don't use pump lubricant but its the only one that does this. It took me a while to figure it out. I first thought it was the fanbelt.
Larry Dowell
Junior Member
It is the original pump...I was told to add it helps with the seals
Larry Dowell
Junior Member
Thanks Mr Endy I know you are very knowlegeble
Rich in Tucson
Senior Member
Soluble oil serves as a water wetter (reduces surface tension of water) which may help with cooling with a marginal radiator in comparison to plain water (which does fine with a good radiator) and it works as a water pump lubricant. Some claim that it reduces corrosion in head/block/radiator etc. however in my experience it works poorly for that and nothing works better than ethylene glycol antifreeze (with anti-corrosion additives) for anti-corrosion. Some won't use ethylene glycol however for fear it will end up in the crankcase (and it might if you ignore a blown head gasket long enough) and wipe out bearings by chemically attacking babbitt (which it can if you ignore a blown head gasket).
Purdy Swoft
Well-known member
My years of experience with model A's taught me that ethylene glycol antifreeze doesn't work well in an unpressurized system like the model A. The only thing that it is good for is to prevent the engine from freezing. Soluable oil- water pump lubricant doesn't help cooling. Soluable oil- water pump lubricant is good for preventing rust and lubricating the water pump and thats it. Like ethylene glycol antifreeze, water pump lubricant hinders cooling. I figure that water pump lubricant is the best of both evils and I use it instead .
wensum
Senior Member
As I've noted in another thread, I use Red Line Water Wetter which I guess is a soluble oil?
I have clear evidence that it has lowered the running temperature of the cars I have used it in and some in-depth studies in Australia proved that it reduces corrosion in motors with aliminium components.
I use this in preference to anti-freeze which is not required here, but the label on the bottle says that it is compatible with anti-freeze
I have clear evidence that it has lowered the running temperature of the cars I have used it in and some in-depth studies in Australia proved that it reduces corrosion in motors with aliminium components.
I use this in preference to anti-freeze which is not required here, but the label on the bottle says that it is compatible with anti-freeze