Reply to "Radiator fluid change"

bosswrenchMember

Something owners of mostly-aluminum cooling systems should look for is antifreeze that says 'low silicate'. Know that for decades, Prestone and others added small amounts of silicate grinding compounds to antifreezes to scour scale out of engines and brass radiators. The abrasives also shorten waterpump seal life and erode thin aluminum heater cores and radiators. In the '90s, Honda began marketing an 'extended-life' low-silicate antifreeze for their all-aluminum water-cooled motorcycles and car engines, and now there are others. Caterpillar Tractors did a study on long-haul trucks and found the low-silicate coolants extended engine life. But not all 'extended-life' antifreeze is low silicate, so look closely at the labels.

2/17/1012:00 PM

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