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. Engine Mount, Replace
Removal
1.
Remove air cleaner assembly.
2.
Support engine with suitable wooden
block and suitable floor jack positioned below oil pan.
3.
Remove engine mount mounting nuts.
4.
Re ...