This is very good advice. I just purchased a 2019 Chevy Trax and have been experimenting with different octane levels. I do prefer Shell and will preferentially start filling up there. Years ago, a reliable mechanic told me the premium octane level burns cleaner and cooler, and therefore prolongs the life of the engine. Why would the car manufacturer give us the OK to use 87? Probably to shorten the life of the engine and force us to buy a new vehicle? It's a good theory!The owner’s manual is a great place to start, as has been said.
I intend on keeping my Trax until the wheels fall off. Octane and fuel detergents absolutely matter over the life of the vehicle. Although designed to use regular unleaded gas, there is much better out there.
I use Shell V-Power only, from day one driving off the dealership lot. It will range between 91-93 octane. Several independent studies have shown increased efficiency and gas mileage, and less wear, for vehicles running premium 91+ octane fuel. A more efficient engine, burning less deposits and using less fuel, is better for the environment.
Shell V-Power has the highest concentration of polyetheramine (PEA), which is a fuel detergent. Techron Complete Fuel System Cleaner, by Chevron, has the highest concentration of PEA for any fuel additive; I drop one bottle in the tank every 60 days.
Hope that helps!
Maybe if yours is direct injection, but you'd be wasting money on a port injected engine that is designed to run on 87. My manual states 87 recommended. Timing and tune is programmed for 87. Once a year I throw in a bottle of GM fuel system treatment. I find this stuff works best. Now this is my opinion only...Do as you wish!!!!So, this week, I am switching to Shell V and willing to pay the extra couple of dollars a week it costs me. I plan to keep my current Trax for as long as possible, so feeding it with more premium level products should be a big factor there.
Paris, new Chevy Trax Owner