Quote:
Originally Posted by redpoint5
I noticed the grill block reduced warm up times, but didn't notice an improvement in MPG. Too many other variables at play that any improvement would be lost in the noise.
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Same here. It *might* be helping, especially in the winter, but so much else has changed since I started getting serious about MPG.
I took all of my grille blocks off a few weeks ago because it wasn't taking long to reach operating temp and trip the radiator fan at 90-100°F ambient. Back to focusing on driving techniques to eke out gains until it gets cold again...