On several occasions they recommended service work at a - WESiv
On several occasions they recommended service work at a much lower mileage than the owners manual. In one case they recommended a carbon blasting of the combustion chamber to remove deposits. When I said that I always used a tier one gas, he responded by say that did not apply. I happened to know better having worked for company that made the gasoline additive for tier one gasoline:
Prevents Carbon Deposit Buildup: It contains higher levels of detergent additives that help keep the engine and fuel system clean by preventing the formation of carbon deposits.
Protects Emission Systems: It prohibits the use of harmful organometallic additives that can damage the vehicle's emission control systems.
Enhances Engine Performance: By maintaining cleaner fuel injectors and combustion chambers, it helps improve fuel efficiency, reduce emissions, and ensure smoother engine operation
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