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OK I am thinking about changing my 2500 spark plugs??

You will be happy after a little break in. Your ecm will learn. But they will last longer, like 70,000 miles longer.
E3 are great in snow blowers lawn mowers, etc.
 
avalonandl said:
You will be happy after a little break in. Your ecm will learn. But they will last longer, like 70,000 miles longer.
E3 are great in snow blowers lawn mowers, etc.
Click to expand...

I'm not even sure they are great in those engines.  :p
 
Sometimes good one stock items are better than aftermarket and this is one of them.
 
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