Question about 2006 Lincoln Navigator

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My 06 Navigator calls for premium 91 octane gasoline... But I have used Regular 87 octane and can feel no difference in performance of any kind. Am I hurting my truck?

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You are not hurting your truck at all... the engine computer adjusts to the lower octane... you may notice a slightly higher fuel consumption with the lower octane fuel but the money you save on lower octane fuel offsets the mileage.

Posted on Sep 15, 2010

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Which octane is recommended for my infinti g35


yes....87 is perfectly fine and should be used all of the time with confidence. The higher octane fuels can sometimes help with a knocking engine but are mostly used for higher end vehicles.

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Been using 87 octane in '02 maxima for 1yr. have replaced oxy & nkock sensors. Is this due to low octane?


Ok the 2002 Maxima 3.5 requires premium fuel 91 octane. According to the owners manual for optimum performance use 91 octane, you can use 87 octane unless you get pinging sounds. Sounds like you just need to use the proper octane. Occasionally I will run regular 87 and can really feel a loss of power. When I use 91 octane the car is a rocket ship.

Sep 19, 2012 | 2002 Nissan Maxima

1 Answer

What kind of gas does a maxima 2001


According to page 10-3 of the 2001 Nissan Maxima Owner's Manual:

FUEL RECOMMENDATION
Unleaded premium gasoline with an octane
rating of at least 91 AKI (Anti-Knock Index)
number (Research octane number 96)
If unleaded premium gasoline is not available,
unleaded regular gasoline with an
octane rating of at least 87 AKI (Research
octane number 91) can be used.
However, for maximum vehicle performance,
the use of unleaded premium gasoline
is recommended.

Engine "knock" is not just an unusual sound - but over time can cause real damage to the engine. You *should* use fuels with the recommended octane levels, but if you choose to use fuel with a lower octane level due to reduce fuel costs - do not repeatedly use fuel that causes engine knock. Find the "sweet spot" between the cost of lower octane fuel and an octane level that does not cause knocking. Expect fuel economy and performance to drop with lower octane fuels, too.

Good luck!

Feb 12, 2012 | 2001 Nissan Maxima

1 Answer

What kind of fuel does the '06 pathfinder use


For optimum performance, you should use high-test or premium gasoline in your Nissan Pathfinder, as per Nissan's specifications. Using a lower octane gasoline can result in premature ignition which can in the long run damage your engine.

Put premium gas.

Jan 27, 2010 | 2006 Nissan Pathfinder

1 Answer

Is it harmful to a car to switch between uleaded and premium gas in a car? I have a 2009 Honda CRV and it says in the manuel that I can use anything 87 octane or higher. I have probably switched about 3...


Premium gas is still unleaded. Using a higher grade gas (ie: 89 or 91 octane) isn't going to hurt anything, and it isn't going to help anything either. You should stick to regular 87 as the higher octane rating gas isn't giving you any advantages.

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1 Answer

CAN YOU USE REGULAR GAS IN A 2006 LEXUS GX470?


Only short term when absolutely necessary...

Your owner's manual says:
"
Fuel selection:
Select premium unleaded gasoline with an Octane Rating
of 91 (Research Octane Number 96) or higher for optimum
engine performance. However, if such premium type
cannot be obtained, you may temporarily use unleaded
gasoline with an Octane Rating as low as 87 (Research
Octane Number 91)."

Jan 04, 2010 | 2006 Lexus Gx 470

1 Answer

I use unleaded plus ALL the time for my car is that good or not good. whats the difference between regular unleaded, unleaded plus and super unleaded? which is best to use?


THE BEST THING IS TO USE WHAT YOUR SERVICE MANUAL CALL FOR. REGULAR UNLEADED 87 OCTANE - UNLEADED PLUS 89 OCTANE - SUPER UNLEADED 91 OCTANE. UNLEADED PLUS ITS OKAY. TO USE EVERY NOW AND THEN I WOULD USE 87.YOU CAN RUN 87 - 89 OCTANE.BUT DONT RUN 91 OCTANE ITS FOR THE HIGH PERFORMANCE ENGINE.

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4 Answers

What type of gas should i use in a 2005 lincoln navigator?


HI. i recommend using the premium in this vehicle. This will ensure optimal performance. The fuel system will accept the regular blend as well but, this is not what this vehicle was engineered for. the regular blends octane level is not sufficient for optimal acceleration and overall performance.

Please rate and god bless:)

Apr 08, 2009 | 2005 Lincoln Navigator

1 Answer

Ideal gasoline


87 octane is ideal for your accent.

It's a little commuter car. It's designed to save you money.
Anything over 87 is just a waste of money, UNLESS your engine is knocking at 87. Then you should step up to the next highest grade.
89 is a made up octane. It's just a mix of the lowest grade and the highest grade. I used to work at a mobil gas station for a year, and the only grades i knew wer 87 and 93, but 89 was an available option. it's just a way for oil companies to benefit off of ignorance.
91 and 93 is for high performance engines, turbo-induction, superchargers, that sort of stuff.
you should be fine sticking with the 87 though, but move up to "89 octane" or 91/93 if your engine knocks a lot.
hope this helps.

Feb 13, 2009 | Hyundai Motor 1998 Accent

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