Quote:
Originally Posted by Lucky13
All Eco Pro does is keep you in a higher gear so how would that use more coolant? Less rpms would mean the engine is not working as hard so wouldn't the opposite be true?
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Less rpms doesn't necessarily mean that, no.
Think about bicycling. If you shift up after you reach speed, you'll work less hard, but if you shift up earlier when accelerating, or when going uphill, you'll have to put more strength on the pedals, cranking them slower.
You may burn fewer calories, but you pay for it with lactic acid.
That said, I don't see why it would affect the coolant either. If it's a 35i, check the oil temp after running for a while. If that seems high too, it may be indicative of other problems.