Prestone or Mitsubishi coolant?

Messages
4,452
Location
Kuwait
Application is for a '00 Mitsubishi Montero. Previously, I used Motorcraft Premium Green coolant and used to drain the radiator first, remove the top radiator hose, and add distilled water until it ran clean. Then I would dump in a gallon of MC PG coolant and be done. However, Motorcraft has gone up in price by a ridiculous rate and it's put me off. What I used to buy for $8.25 a gallon is now $19.80. As it's a conventional coolant, I'm considering alternatives. Prestone all-makes pre-mixed green coolant seems like a quality choice. The other is Mitsubishi's own pre-mixed coolant with a 30% concentration. Both are conventional. Because of local climate conditions (dust, etc.) I flush my coolant every 30,000 miles. Should I just go for the cheapest option in this case? I replace my cap every time I flush the system. Every second change, the thermostat and hoses are replaced too (which is what I'll be doing this time round). Thanks!
 
Messages
14,430
Location
The Old North State
If you're going to change/flush it every 30k anyway, I see nothing wrong with the Prestone AM/M EL. I've used it in two vehicles with no issues. Readily available at a reasonable price. For me though, I'd get the Prestone concentrate and add distilled water, a much better value. JMO.
 
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