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Re: GM DEF Testing
Posted to Technical Discussion Forum on 4/23/2014 2 Replies

Junk would be a good choice.

While the 10+ year old, 150,000 mile+ 4900's are out pounding the roads in a snow storm, the 7400's are sitting either in the garage or at the dealer awaiting their turn in the garage for warranty work.

Have made a few posts i... Login to read more.

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