my warranty will expire in 2 weeks so i'm thinking of doing low mileage service myself in every 10.000 km since they charge a lot for labour and they use cheap crappy oil. i'll still get parts like oil filter, air filter from fiat dealer but i'm thinking of using Mobil 1 ESP 0W-40(seems to be the best on market) and i'm going to need your advice on spark plugs. everyone i ask recommend NGK so it'll be the one i buy for sure, but i need to know if any sort of upgrade is possible rather then using the ones shown in ePER. i've heard platinium ones are a bit expensive but very high quality and long lasting, but i don't know if they're 100% compatible with my engine.