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?
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?