At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT).
We recommend against the use of gasolines containing MMT. See Additives for additional information.
Gasoline Octane
California FuelChevrolet Cobalt Service & Repair Manual. Differential Side Gear R&R
1.
Remove the ten differential ring gear
bolts from the differential case. Discard the bolts, Fig.
1.
2.
Remove the differential ring gear from
the differential case.
3.
Remove the left, then the ...