Driving and Operation
Top Tier Fuel (Gasoline and Diesel)
In this manual: Driving and Operation
~1min read
Top Tier Fuel (Gasoline)
GM recommends using TOP TIER Detergent Gasoline to keep the engine clean, reduce engine deposits, and maintain optimal vehicle performance. Look for the TOP TIER logo or see www.toptiergas.com for a list of TOP TIER Detergent Gasoline marketers and applicable countries.

Top Tier Fuel (Diesel)
GM recommends using TOP TIER Diesel Fuel to keep the engine clean, reduce engine deposits, and maintain optimal vehicle performance. Look for the TOP TIER logo or see www.toptiergas.com for a list of TOP TIER Diesel Fuel marketers and applicable countries.

Test yourself
A quick GMC Terrain quiz: every answer comes with an explanation and a link to the manual page.
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