I'm looking to change the plugs on my 2010 Equinox with 70,000 miles at the next oil change in a few months. There are two ones I'm looking at: AC Delco iridium 41108, $17.72 with shipping and after rebate ($2 per plug) for 4 Autolite iridium XP5263, $11.00 with shipping and after rebate ($2.50 per plug) for 4 Thoughts on which one to go with? Never used Autolite before. Not sure if they are as good as AC Delco or not, or if it doesn't matter? Reviews for this particular Autolite on Advance Auto are very good but it seems the reviews are all for Chrysler vehicles.