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GMC C4500 Topkick MPG

2 GMC C4500 Topkicks have provided 30 thousand miles of real world fuel economy & MPG data.
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GMC C4500 Topkicks For Sale Nearby

Tips

Use a mixture of neutral coasting and in gear coasting

I've seen allot of tips saying never to coast in neutral. ... ...

by Mikes1992

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