Winterizing a Cummins 6BT/6BTA

[Bill Desmarais]

Hello all,

I hauled my little lobster boat last week. Getting cold up here in NH.
Marina contracts up here in the northeast end on Oct 15th for the most part.

The raw water cooling circuit in the 370 needs to be winterized.
How to do it? How much RV anti freeze required for the Cummins 6BT/BTA to winterize?

I think I captured the information and procedure for winterizing a marine diesel in the following three
videos.

For what it’s worth,

Bill D

2 users thanked author for this post.

Brian Katz, Rob Schepis

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[Bill Desmarais]

yup…3 gals would be plenty. The 370 in my boat has a 5″ Centek horizontal muffler…drains hauling up the ramp.

[Fireisland1]

I use the same system as shown and 5 gallons. Probably only needs 3

[Author]

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