Gasoline Specifications (U.S. and Canada Only)
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 Fuel Additives on page 9‑41 for additional information.
See also:
Vehicle Overview
GMC’s full-size van sells in fewer numbers than the similar Chevrolet Express
but attracts a loyal clientele. Along with its full-size rivals from Dodge and
Ford, the rear-drive truck-based van ...
Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi).
See Maintenance Schedule on page 11‑3.
Tires are rotated to achieve a uniform wear for all tires.
The first rotation is the most important. ...
Tire Inspection
We recommend that the tires, including the spare tire, if the vehicle has one,
be inspected for signs of wear or damage at least once a month.
Replace the tire if:
○ The indicators at three ...