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The Mazda CX5 frequently experiences a turbo ticking noise, typically due to oil delivery issues at the top of the cylinder heads. This noise can be intensified by low oil levels, problems with the oil filter or pump, insufficient fuel, low air compression, or worn spark plugs. For turbo engines, it is essential to use high-quality fuel with a 91 octane rating to support high air compression. Additionally, using high-performance synthetic oil helps ensure proper lubrication of the engine's pistons and cylinders, thus preventing potential engine issues.
There are a few possible issues with the engine of a 2019 Mazda CX-5 Turbo, such as insufficient lubrication, inadequate fuel and air compression, and worn-out spark plugs.