BAC Forum

General Boards => Technical Support => Topic started by: Mark Bryant on May 31, 2016, 01:10:09 PM

Title: C9 coolant quanity
Post by: Mark Bryant on May 31, 2016, 01:10:09 PM

What's the quanitY of coolant for 06 Monterey w/C9?

Title: Re: C9 coolant quanity
Post by: William Ervin on May 31, 2016, 03:35:41 PM

It really depends on your radiator size but roughly eight gallons 50/50 mix.  Don't be a ding-dong like me and buy eight gallons of full strength thinking its already mixed.  There are several out there that are for Diesel engines (Cat/Cummins approved) I used a Valvoline product.

Title: Re: C9 coolant quanity
Post by: Steve Huber on May 31, 2016, 06:47:15 PM

Mark,
Initial fill coolant capacity for a C9 is 50-55 qts.
Steve

Title: Re: C9 coolant quanity
Post by: Gerald Farris on June 01, 2016, 02:55:52 PM

Mark,
Even though your coach had an initial fill of 10.5 to 11.5 gallons like Steve posted, a drain and refill will still leave 2 to 3 gallons in the system that will not drain out. Therefore, a drain and refill will take from 8 to 9 gallons.

Gerald 

Title: Re: C9 coolant quanity
Post by: Mark Bryant on June 01, 2016, 03:29:16 PM

Thanks, you all confirmed what I thinking!

Title: Re: C9 coolant quanity
Post by: Joel Ashley on June 02, 2016, 01:49:13 AM

See image below from my '06 Monterey (C9) manual:

The coach manufacturer determines radiator size and hose length, etc., so the capacity varies for any engine from mfr. to mfr., and CAT won't list a flat capacity for an engine.  That has to come from Beaver/Monaco.

Going by Gerald's several gallons retained numbers, it looks like you'd need roughly 13 gals to top up, so presuming 50/50 mix maybe get 7 g. of antifreeze;  you can always take back what's not opened.

All that said, when I had ELC put in back in 2012, according to my receipt they used 5g of ELC and 5g of water, ran to operating temp and leak checked, and "topped off", so they needed 6g to do the job.

Joel