Chemical Paint Spotting
Airborne pollutants can fall upon and attack painted vehicle surfaces causing blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface.
See also:
Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat
or rolling terrain. Tips for driving in these conditions include:
Keep the vehicle serviced and in good shape.
Che ...
What Kind of Engine Oil to Use
Look for two things:
• GM6094M
Your vehicle’s engine requires oil meeting
GM Standard GM6094M. You should look
for and use only an oil that meets GM
Standard GM6094M.
• SAE 5W-30
As s ...
Gasoline Octane
Use regular unleaded gasoline with a posted
octane rating of 87 or higher. If the octane rating
is less than 87, you may notice an audible
knocking noise when you drive, commonly referred
to as sp ...