Dex-Cool
Factory says----5W30 in the winter time. Be sure to use A/C delco oil filter.
Dex-cool
DEXRON iii ATF
The factory coolant is a red, five year, HOAT type coolant.
More than likely Dexron 3. Call your local GM dealer to be 100% sure.
Dexcool
Green.
dexcool its the orange colored coolant
your question makes no sense, clocking is the position of the plug, not related to the size of the plug or type of connector.
green
R134
Dex-Cool