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. Lube, Oil & Filter, Replace
Caution: Prolonged and repeated
contact with engine oil and grease will result in removal of natural oils
from skin, leading to dryness, irritation and dermatitis. In addition, used
engine oil and grease contains potentially harmful contaminants which may
cause skin cancer. Pr ...