OK, I'll keep an eye on the coolant regardless. I shouldn't be too worried especially as it happened once (that's been seen) and was fine after that. It was the first real boot of the day after sitting un-used for 2 days, so maybe it did just clear a little sediment out? It's hard not to worry, but I'll try lol.
Recommended minimum is 95, and I read things about 98 being ideal. I must admit I'm not getting the greatest economy but I'd rather use what's better for the engine than what's better for my pocket (for now lol).
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