Do i NEED dexos oil? What is dexos...
Not top line royal purple....I believe Mobil 1 is dexos approved just look at your label. I'd even go so far as to say that most full synthetic oils meet the dexos standard.
No. Mobil 1 or Castrol. Walmart has the best prices. Better when you find them on sale. My dealer had the 12,000 mile maintenance plan for free but they used semi synthetic from GM. I asked if they could use full synthetic. He said yes GM has full synthetic but I would pay for the oil. Not sure if my cost was the difference of the two or at a discount. I believe they wanted to charge me about $40 just for the oil. It was cheaper to go to walmart and buy the oil myself and an AC Delco oil filter at a local parts store.Does nobody use the original GM oil like this?
No. Mobil 1 or Castrol. Walmart has the best prices. AC Delco oil filter at a local parts store.