[Fot] Oil line & cooler flush

[John Frymark]

I was in the industrial cleaning industry for a while and the only effective oil cooler cleaning I knew of was done by immersion in an ultrasonic tank with a pressured flow through the cooler. The ultrasonic action dislodged particulates which were extracted by the fluid flow through the cooler. This used aqueous cleaning solution (solvents do not work with ultrasonics) heated to 180*F and with a mild alkaline degreasing agent. It is cost justified in fleet maintenance settings, but buying a replacement oil cooler is probably less expensive for us racers.

John Frymark

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