Mechanics

SPARK PLUGS

2005 Cadillac Escalade Ext • V8 AWD Automatic • 66,000 miles

What r the best spark plugs to get better gas milage on a 2005 cad ext, and can they be replace from the top?
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Chuck12
March 13, 2011.



In my opinion, you are going to get the best performance, and economy, with the plugs the vehicle was manufactured with. Others may claim improvements, and I think that is just a catch to get you to purchase their product. You can get them from the top, the rh rear plug(#8) is going to be the most difficult. Often times the plug wire boots can be a bit of a struggle to release.

Factoryjack
Mar 14, 2011.