Cadillac SRX Second Generation Forum - 2010+ Discussion, Top Tier Gasoline Recommended for SRX in Cadillac SRX Forums; Pages 8-43 and 8-45 of the owner's manual recommend Top Tier Gas only. The following is taken from the Top ...
Pages 8-43 and 8-45 of the owner's manual recommend Top Tier Gas only. The following is taken from the Top Tier website.
TOP TIER Detergent Gasoline is the premier standard for gasoline performance. Six of the world's top automakers, BMW, General Motors, Honda, Toyota, Volkswagen and Audi recognize that the current EPA minimum detergent requirements do not go far enough to ensure optimal engine performance.
Since the minimum additive performance standards were first established by EPA in 1995, most gasoline marketers have actually reduced the concentration level of detergent additive in their gasoline by up to 50%. As a result, the ability of a vehicle to maintain stringent Tier 2 emission standards have been hampered, leading to engine deposits which can have a big impact on in-use emissions and driver satisfaction.
These automakers have raised the bar. TOP TIER Detergent Gasoline helps drivers avoid lower quality gasoline which can leave deposits on critical engine parts, which reduces engine performance. That's something both drivers and automakers want to avoid.
I've been running top tier gas for a few years and have not had to have any top end cleaning done on my recent cars. Previously, my cars needed it about every 30K miles. It also helps that one of our local Shell stations is full serve, for the same price as self-serve, and the gas is pumped by cute girls.