5W30. Synthetic or conventional is up to you.
The drain plug on a 2007 Chevy Cobalt typically requires a 15mm socket. However, it's always a good idea to double-check with your specific vehicle's manual or to verify on the vehicle itself, as variations can occur depending on the engine type or any modifications made.
A 2007 Chevy Cobalt with a 4-cylinder engine typically requires about 5 quarts of oil, including the oil filter. It's important to use the correct type of oil, usually 5W-30, as specified in the owner's manual. Always check the dipstick after adding oil to ensure the level is correct.
A reasonable sale price for a 2010 Chevy Cobalt starts at $14,990. The MSRP can go up to $23,425 depending of the features of the car and the model type.
If it's orange colored it's dex-cool.
Go to Google and type 2009 cobalt 20K miles Kelly Blue Book Value. Good luck!
5w30
Dexcool
To change the transmission fluid on a 2007 Chevy Cobalt, first ensure the vehicle is on a level surface and securely elevated. Remove the transmission pan bolts and carefully drop the pan to drain the old fluid, then replace the filter. Reinstall the pan with a new gasket, refill the transmission with the appropriate type and amount of fluid through the dipstick tube, and check the fluid level while the engine is running and in park. Always consult the owner's manual for specific fluid capacities and recommendations.
you should still have a factory warranty on that car, check with a local Chevy dealer.
H11
For drilling into metal, you should use a cobalt drill bit.
Dexcool. ORANGE color.