My 2002 Accent (1.6L) recently hit the 60,000 mile mark and I had the recommended maintenance done yesterday. However, The spark plugs didn't get changed because I didn't want to spend an additional $100 on the dealer's platinum spark plugs (+ labor fee) as I can change them myself for far cheaper.
My question is what spark plug (part numbers if possible) do you recommend for this high-mileage car? Should I just go with some platinum spark plugs or just use the copper-core plugs that are recommended in the owner's manual (e.g., Champion RC10YC4 and NGK BKR5ES-11).
If I go platinum what is the real difference between say NGK's BKR5EGP "G-Power Single Platinum" and their more expensive "Laser Platinum" PFR5N-11.
Thanks