Vehicles with a yellow fuel cap can use either unleaded gasoline or ethanol fuel containingup to 85% ethanol (E85). SeeE85 or FlexFuel. For all other vehicles, use only the unleaded gasoline described underRecommended Fuel.
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Vibration Theory and TerminologyEngine Component Description (LFX)
The High Feature V6 (VIN Code Identifier “3” for both cars and trucks) RPO LFX isa 3.6-Liter VVT-(Variable Valve Timing) engine with direct injection. The LFX hasE85-compatible valves and seats with special materials and coatings that require slightlydifferent service procedures from gasoline va ...