Reached 186,000 , performed tune up to my 2013 v6 4.0. Last done at 130,000. Replaced all 6 spark plugs w/ NGK Iridium Laser plugs. Replaced all 6 original coils with NGK OEM coils. Bought all parts on Rock Auto at less than 1/2 the price at all local parts stores . 6 new ngk coils & 6 new ngk...