Prestone HD conventional, Detroit 12.7, 65 mths, 33k miles

[jetman]

Here's our latest used coolant analysis report.

1995 Detroit Diesel 12.7L series 60. Coolant system capacity in 24 gals.

This coolant is Prestone Command (purple cap) HD Coolant pre-charged w/SCA: https://prestonecommand.com/wp-content/uploads/PCMMD-AFCPurple_PA1862.pdf It's a conventional standard life coolant and is ethylene glycol based. It's been in service for 64 mths and 33k miles. Fleetguard WF2131 slow release SCA filter has been in place for 43 mths and 27k miles.

Report looks okay to me, but coolant/water ratio is 46%. To bring it up to 50%+ I'll drain out 3 gals and replenish with 3 new gals of new 100% concentrate NAPA HD sca pre-charged coolant. And maybe another slow release or need release filter soon.

What say you?

 

[atikovi]

Report looks okay to me, but coolant/water ratio is 46%. To bring it up to 50%+ I'll drain out 3 gals and replenish with 3 new gals of new 100% concentrate NAPA HD sca pre-charged coolant.

Where in Texas will it ever get anywhere near -17°F?

 

[Chris142]

I wouldn't bother with trying to make it 50/50

 

[MParr]

It looks like it’s mixed with tap water.

 

[brianl703]

Where in Texas will it ever get anywhere near -17°F?

Nowhere, but the vehicle may be driven to a place where it does.

 

[jetman]

It looks like it’s mixed with tap water.

Distilled

 

[MParr]

I’m curious. I see markers for hardness. I assumed this is from tap water, along with the calcium. That was in the first test.

 

[jetman]

I’m curious. I see markers for hardness. I assumed this is from tap water, along with the calcium. That was in the first test.

Purchased the vehicle 12/13.

Sample #1 is what came in it from the previous owner. So, who knows???? I do know they were using plane jane automotive Prestone and a SCA charged filter occasionally.

It took me a while to educate myself and initiate a game plan.

 

[atikovi]

Had to Google Prevost http://www.prevost-stuff.com/1996PrevostCCXL_MHS.html That thing is big as a Greyhound bus.

 

[jetman]

Yes, here's a pic. 1995 Prevost XL 40', converted when new to a motorhome by Liberty Coach and licensed in 1996.

 

[atikovi]

Must be fun changing a flat tire.

 

[jetman]

In passenger service they seated up to 51 paxs and bassage.

 

[NashNative]

I believe Prevost is now owned by Volvo and they are all Volvo-powered now. Sweet looking bus you've got there!

 

[jetman]

I believe Prevost is now owned by Volvo and they are all Volvo-powered now. Sweet looking bus you've got there!

And like all our stuff "old and paid for"

 

[nthach]

In passenger service they seated up to 51 paxs and bassage.

Depends on the config - a transit agency here bought two NYCMTA demo buses without toilets, they seat 55 passengers. Greyhound and NYCMTA are major operators of the Prevost XL3-45. Else, the MCI D4500/J4500 series and VanHool TX45/TD925 rules around here.