THere is a fill plug located approximately 2\3rd up from bottom.
fill differential with Diff oil until level with bottom of the plug.
No, that is gear lube for a differential. Use mercon.
You have to remove the differential cover to drain the lube. It should take aprox 4 pints to refill it.
yes.. To my knowledge the rear wheel bearings are lubricated with the differential gear lube as you drive.
maybe
standard 80/90 if its winter you can use synthetic also still 80/90
The front differential is a full synthetic gear lube. If you have to ask where it is then you should probably take it to a reputable dealer or Lube shop. The actual specs for the gear lube are in the owners manual. Whoever wrote this has no clue either. The front diff has a 26mm bung on the right front side of the diff casing. See photo page 5-47 of 2003 owners manual
75 80 90 gear lube is fine
Usually you fill it to the bottom of the hole.
The best way to do it is to lift the rear of the truck so that the shocks are fully extended. make sure you have a replacement differencial gasket and gear lube before hand. remove the differential cover to drain the old gear oil. clean both mating surfaces to prepare for the new gasket. Now, either on the top or on the side of the differential is a screw off type plug. Remove the plug and place an approximate, 3/8 hose on the gear lube bottle and into the differential hole and squeeze the bottle until the lube is just at the bottom of the hole and about to pour out. Replace the plug and you should be good to go.
There are NO chassis lube points on a 2008 Malibu!
75W-90 synthetic gear oil
85W90 gear oil and add a bottle of positive trac. lube also.