Hi all,
Just bought 5 litres of Motorcraft coolant to stick in my Ford Escort Zetec. Haynes says that the coolant should be ethylene glycol based, and states Ford spec. esd-m97b49-a. The stuff I've bought contains ethanediol and is Ford spec. wss-m97b44-d. It states on the bottle that it can be mixed with the other specification, but I was just wondering if it's suitable for use in my engine?
Didn't think of it at the time, just picked up a bottle of coolant at the parts desk when I was buying some other bits and pieces.
I don't know what is in the car at the moment - I predsume it's ethylene glycol based - it was last done at a fast-fit type place, and it looks red in colour. The stuff I've bought is a purply/pink colour, and is slightly gelatinous.
I know nothing about anti-freeze technology, but I'm guessing that if the bottle states it's OK to mix with the other ethylene glycol based stuff then it's safe to just drain and refill without bothering to reverse flush the system?
Cheers,
Robert