it`s in the radiator (notice two large lines on passenger side radiator tank)
Yes it does.
no, but its not a good idea to let oil get low
cold pressed olive oil farcked mine up BIG TIME!
5W30 oil.
Yes, Just unhook them from the side of the oil filter adapter and install 2 pipe plugs in there place. That's it.
For a 2003 Chevy Suburban (all engine sizes), the recommended viscosity is 5W30.
There is a oil cooler heat exchanger under the intake manifold
It there on the passenger side of the radiator then there TRANSMISSION coolant lines and they hook to the transmission. If there on the other side then there OIL cooler lines for the engine.
I think the engine oil cooler was optional equipment, with a tow package, but I am not sure. If it has one it will be at the oil filter, you will see 2 coolant hoses plumbed into the oil filter adaptor housing. The tranny cooler is in the right side radiator tank, typically fed by 2 steel tubes. One goes into the top of the tank, the other goes out the bottom.
80W90 gear oil.
85W90 gear oil.
6 quarts of oil.