Every time you stop for fuel, check the engine oil as follows:
- Make sure the car is parked on level ground.
- When checking the oil level it is best for the engine to be at normal operating temperature, although checking the oil immediately after stopping will lead to a false reading. Wait a few minutes after turning off the engine to allow the oil to drain back into the crankcase.
- Open the hood and locate the dipstick which will be on either the right or left side depending upon your particular engine. Pull the dipstick from its tube, wipe it clean and then reinsert it.
- Pull the dipstick out again and, holding it horizontally, read the oil level. The oil should be between the "FULL" and "ADD" marks on the dipstick. If the oil is below the "ADD" mark, add oil of the proper viscosity through the capped opening in the top of the valve cover. See the "Oil and Fuel Recommendations" chart in this section for the proper viscosity and rating of oil to use.
- Replace the dipstick and check the oil level again after adding any oil. Be careful not to overfill the crankcase. Approximately one quart of oil will raise the level from the "ADD" mark to the "FULL" mark. Excess oil will generally be consumed at a faster rate.
OIL & FILTER CHANGE
The oil in the engine of your Pontiac should be changed every six months or 7,500 miles, whichever comes first (Diesels should be changed every 5,000 miles). If you live in an extremely dusty or smoggy area, change your car's oil more frequently. A new filter should be installed with every oil change, and the used oil put into a suitable container and taken to a collection or reclamation point for recycling (many garages and gas stations have storage tanks for this purpose).
The oil should always be changed while hot, so the dirt and particles will still be suspended in the oil when it drains out of the engine. To change the oil and filter:
- Run the engine until it reaches normal operating temperature.
- Put the transmission in "Park," set the parkin