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dpfitch's avatar
dpfitch
Explorer
Nov 21, 2015

Need some help with Coolant issue in 2002 Tiffin Allegro

Bought this bus in June of 2015 in Phoenix. We live in Twin Cities of Minnesota. No problems with bus this year. It was a good buy. Putting storage cover on bus last week and it dawned on me that c...
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wolfe10's avatar
wolfe10
Explorer
Nov 21, 2015
David,

Reality-- very unlikely you will know what coolant is in there unless there is a receipt for changing it. Worse, it could be OE and 13+ years old.

The ONLY rational thing to do is flush and go back with new coolant.

Make sure you use one made for diesels. Either the "low silicate for diesel with added SCA" or the newer no-maintenance OAT-based coolant.

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