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GX470 Fuel Economy
#32
And is a dirty MAS a common thing with the K&N filter, or is this more of a rarity?
Turby
#33
Racer
few points
the engine is designed for high octane fuel, not low octane.
you should not overfill gas tank as others mentioned here.
finally, overinflating your tire I assume when its cold is a big no no. When you drive it, the pressure goes even much higher on a warm day, like 5-10psi higher.
the engine is designed for high octane fuel, not low octane.
you should not overfill gas tank as others mentioned here.
finally, overinflating your tire I assume when its cold is a big no no. When you drive it, the pressure goes even much higher on a warm day, like 5-10psi higher.
#34
#35
#36
Rookie
Thread Starter
Quote from the reverse side of the back cover page of the 2003 GX Owner's manual:
"Fuel selection:
Select Octane Rating 87 (Research Octane Number 91) or higher. For improve vehicle performance, the use of premium unleaded gasoline with an Octane Rating of 91 (Research Octane Number 96) or higher is recommended."
I have filled the tank with strictly premium fuel (93 oct) and wit regular (87 oct) and have noted NO difference at all, hence I continued using regular 87 octane fuel.
I also have an older MB, and in that thing you can absolutely tell the difderence, so I figured that if a real difference existed it would also be easily noticeable.
"Fuel selection:
Select Octane Rating 87 (Research Octane Number 91) or higher. For improve vehicle performance, the use of premium unleaded gasoline with an Octane Rating of 91 (Research Octane Number 96) or higher is recommended."
I have filled the tank with strictly premium fuel (93 oct) and wit regular (87 oct) and have noted NO difference at all, hence I continued using regular 87 octane fuel.
I also have an older MB, and in that thing you can absolutely tell the difderence, so I figured that if a real difference existed it would also be easily noticeable.
#37
According to the Toyota spec sheet (attached) the pre VVT-i engine and the VVT-i engine both "require" 87 octane or higher (attached). However, certain GX owner's manuals call for or recommend 93 octane or higher.
Given the confusion/debate, I contacted Toyota corporate and they could not explain the reason for the discrepancy not only between certain MY GX's, but also by comparison with what is stated in the 4-Runner V-8 owner's manual despite they all share the exact same engine.
OP, I like Techron fuel system cleaner. I try to add a bottle to a tank every 3 or 4 months.
Given the confusion/debate, I contacted Toyota corporate and they could not explain the reason for the discrepancy not only between certain MY GX's, but also by comparison with what is stated in the 4-Runner V-8 owner's manual despite they all share the exact same engine.
OP, I like Techron fuel system cleaner. I try to add a bottle to a tank every 3 or 4 months.
#39
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Hello,
I have 06 with 37k miles and get 18-19mpg hand calculated 20-21 on the on board computer. I have been using non ethnol mid grade very limited places to purchase from, but happen to have a GranDel down the street from me. I drive a combination of city and highway. I try and stay between 55-65 on the highway, anything over and my mileage it 15-16. I do not baby my rig but do watch for red lights and coast and do not punch it when the light turns green.
I have 06 with 37k miles and get 18-19mpg hand calculated 20-21 on the on board computer. I have been using non ethnol mid grade very limited places to purchase from, but happen to have a GranDel down the street from me. I drive a combination of city and highway. I try and stay between 55-65 on the highway, anything over and my mileage it 15-16. I do not baby my rig but do watch for red lights and coast and do not punch it when the light turns green.
#40
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According to the Toyota spec sheet (attached) the pre VVT-i engine and the VVT-i engine both "require" 87 octane or higher (attached). However, certain GX owner's manuals call for or recommend 93 octane or higher.
Given the confusion/debate, I contacted Toyota corporate and they could not explain the reason for the discrepancy not only between certain MY GX's, but also by comparison with what is stated in the 4-Runner V-8 owner's manual despite they all share the exact same engine.
Given the confusion/debate, I contacted Toyota corporate and they could not explain the reason for the discrepancy not only between certain MY GX's, but also by comparison with what is stated in the 4-Runner V-8 owner's manual despite they all share the exact same engine.
#41
Lexus Test Driver
#43
Don't think premium means more detergent, just higher octane. So don't make cleanliness your reason for choosing an octane. You want clean, stick with top tier gas.
#44
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Here is the difference between LEV and ULEV II
"ULEV II: Ultra-Low-Emission Vehicle, a mid-level Phase II LEV standard. Hydrocarbon and carbon monoxide emissions levels are nearly 50% lower than those of a LEV II-certified vehicle."
#45
To have clean running engines Lexus changed the recommendation and made the premium fuel the requirement. It has to do with meeting the ULEV II certification requirements.
Here is the difference between LEV and ULEV II
"ULEV II: Ultra-Low-Emission Vehicle, a mid-level Phase II LEV standard. Hydrocarbon and carbon monoxide emissions levels are nearly 50% lower than those of a LEV II-certified vehicle."
Here is the difference between LEV and ULEV II
"ULEV II: Ultra-Low-Emission Vehicle, a mid-level Phase II LEV standard. Hydrocarbon and carbon monoxide emissions levels are nearly 50% lower than those of a LEV II-certified vehicle."