used provided that the oil quality requirements de-
scribed above are met and the recommended mainte-
nance intervals for oil and filter changes are followed.
²Lubricants which do not have both the engine oil
certification mark or current service symbol and the
correct viscosity grade number should not be used.
Synthetic Engine Oils
There are a number of engine oils being promoted as
either synthetic or semi-synthetic. If you chose to use
such a product, useonlythose oils that meet the Ameri-
can Petroleum Institute (API) and SAE viscosity stan-
dard. Follow the service schedule that describes your
driving type.
Materials Added to Engine Oils
The manufacture strongly recommends against the addi-
tion of any additives (other than leak detection dyes) to
the engine oil. Engine oil is an engineered product and
it's performance may be impaired by supplemental ad-
ditives.
Disposing of Used Engine Oil And Oil Filters
Care should be taken in disposing of used engine oil and
oil filters from your vehicle. Used oil and oil filters,
indiscriminately discarded, can present a problem to the
environment. Contact your dealer, service station, or
Preferred Viscosity for 3.7L/4.7L/5.7L Engines
296 MAINTAINING YOUR VEHICLE
