2006 GT 4.6L owners manual recommends to use 87 octane and not "Premium". My question is: would it be safe to use a higher grade fuel? I've always used premium, even the lawn mower gets it and I've never experienced any negative results.
Thank you for any input.
.....when I turn the key I get nothing, not even a click, battery is good, even tried with booster cables, had the starter tested and it worked on the machine, replaced the ignition switch. Any suggestions?