Truck is a 2002 F150. This is around the time they switched the spec over to what is Zerex G05.
Truck came from the factory with green. Around the time the first drain/fill came around, I was too confused with my options, and couldn't find Zerex, so I used Prestone all makes.
Then I found Zerex a little later. Drained out the prestone, put in Zerex.
I'm thinking it's time to do a drain, flush, chemical clean as there is some gunk/scale buildup inside the plastic reservoir, and then rinse, and refill.
I think around here a gallon of Zerex full strength runs $18-$20. Traditional green can be had for $9.99.
Part of me wants to go back to green simply because Zerex is yellow so it is very difficult to tell when/if it is contaminated because it just changes shades slightly. I remember that the green stuff would become visibly dark with age. My understanding from Ford is that if the vehicle came with Motorcraft Premium Yellow, then you need to stick with it. If it came with green, you can continue using green or change out to yellow (or even mix the two, but then the service interval is for green, not yellow)
Is my thinking illogical? I don't mind using Zerex again but this truck is old and I'm trying to avoid the "boutique" methods of maintenance (for example, I only use SuperTech oil now, cheap tires, etc..), but I want to keep it running and trouble free until the wheels fall off.
Truck came from the factory with green. Around the time the first drain/fill came around, I was too confused with my options, and couldn't find Zerex, so I used Prestone all makes.
Then I found Zerex a little later. Drained out the prestone, put in Zerex.
I'm thinking it's time to do a drain, flush, chemical clean as there is some gunk/scale buildup inside the plastic reservoir, and then rinse, and refill.
I think around here a gallon of Zerex full strength runs $18-$20. Traditional green can be had for $9.99.
Part of me wants to go back to green simply because Zerex is yellow so it is very difficult to tell when/if it is contaminated because it just changes shades slightly. I remember that the green stuff would become visibly dark with age. My understanding from Ford is that if the vehicle came with Motorcraft Premium Yellow, then you need to stick with it. If it came with green, you can continue using green or change out to yellow (or even mix the two, but then the service interval is for green, not yellow)
Is my thinking illogical? I don't mind using Zerex again but this truck is old and I'm trying to avoid the "boutique" methods of maintenance (for example, I only use SuperTech oil now, cheap tires, etc..), but I want to keep it running and trouble free until the wheels fall off.
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