Recommended Fuel for the Cayenne ?
#1
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Hello, I've received my Cayenne today, the delivery guy told me that 98 octane fuel is "necessary" for the engine and using lower octane fuel such as 95 for long period will drop the warranty eventually, I want your opinion on this matter. both on best fuel and the claims he made about warranty.
#3
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Per the manual, the recommended fuel is min 98 RON/ 88 MON (93 CLC/AKI). 93 is becoming harder to find and in CA most stations sell 91. In case of an emergency, the engine is designed to run with fuels as low as 91 RON/82.5 MON (86 CLC/AKI) but do not floor the accelerator.
#5
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Per the manual, the recommended fuel is min 98 RON/ 88 MON (93 CLC/AKI). 93 is becoming harder to find and in CA most stations sell 91. In case of an emergency, the engine is designed to run with fuels as low as 91 RON/82.5 MON (86 CLC/AKI) but do not floor the accelerator.
#6
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Do yourself and the car a favor and don't cheap out on the quality of fuel.
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Abdulaziz Alj (09-20-2020)
#7
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My quick calculation shows for $0.8/L You spend $400 for 5000 km driven. That's $160 difference per 5000 km for you. A brand new engine will cost at least $15,000 plus installation labor, so the math is clear.
Do yourself and the car a favor and don't cheap out on the quality of fuel.
Do yourself and the car a favor and don't cheap out on the quality of fuel.
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#8
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As I wrote above, in California nearly all stations sell 96 / 86 which is labeled as 91. Some is true in other parts of the US so there are many people running 96 without any issues. I think 95 should also be fine. All US stations also sell cheaper, lower octane gasoline but I’ll never put that in our cars.
#9
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Cars optimized for 98 RON will run well on 98 RON and will not run at optimal condition with anything lower than that. Simple matter of design capacity.
Modern DMEs are capable of adjusting timing advancement(advance for higher octane /retard for lower octane), but this depends heavily on knock sensors which it detect pre-detonation in every combustion cycle and compensate for lower fuel by adjusting timing. You can imagine this does not mean 100% prevention of an engine knock as sensors have their delays. This is why the manufacturer will not honor warranty when a user decides not to follow their recommendations.
Modern DMEs are capable of adjusting timing advancement(advance for higher octane /retard for lower octane), but this depends heavily on knock sensors which it detect pre-detonation in every combustion cycle and compensate for lower fuel by adjusting timing. You can imagine this does not mean 100% prevention of an engine knock as sensors have their delays. This is why the manufacturer will not honor warranty when a user decides not to follow their recommendations.
#10
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As I wrote above, in California nearly all stations sell 96 / 86 which is labeled as 91. Some is true in other parts of the US so there are many people running 96 without any issues. I think 95 should also be fine. All US stations also sell cheaper, lower octane gasoline but I’ll never put that in our cars.
#11
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this is the recommendation to 98 octane in the manuals, the numbers changes here might confuse others (and me) i though octane measurement is international but the US might be using different measurement, honestly i only know octane idk about RON or MON