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A GL-5 gear oil is safe for use in the steering box as there are not the temperatures necessary to be corrosive. Some GL-5 gear oils can be corrosive to brass or bronze depending on the concentration of reactive sulphur used and temperatures present. We are using the ShockProof Heavy with very...

WaterWetter helps reduce coolant temperatures when they try to rise above the ideal as well as providing rust and corrosion protection. Antifreeze doesn’t transfer heat near as well as water, soluble oils tend to coat the cooling system further impeding heat transfer. In a Model A cooling system...

Not unusual, moisture from combustion tends to collect at the high point in the engine, the upper valve chamber ultimately the distributor base. I grease the shaft and the distributor base before installing,the PCV valve installed in the top center of the valve cover removes the combustion by...

I like the mechanical SW gauge, it looks "period", has a broad 270° sweep expanded definition at Model A operating temperature and starts reading at 100°F. A's Always Dave