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. Exhaust Muffler, Replace
Warning: Exhaust system operates
at high temperatures. Allow system to cool before servicing or burns or
personal injury may result.
Caution: Do not use oil or
grease-based lubricants on isolators. These lubricants may cause deterioration
of rubber. This can lead ...