How much is your time worth? How much of your time have you spent trying to save maybe $20 on two gallons of coolant at most, vs spending that time on better things.

I'm all for saving money, if I was at a store and the two were side by side I'd grab the cheaper.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200