MPG Update...
#31
Lexus Champion
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Originally Posted by Har
Alan,
What band gasoline and octane do you typically use?
I have been using Sam's Club and BJ's alternating between regualr and preimium mostly for convenience and to save a few pennies.
Harold
What band gasoline and octane do you typically use?
I have been using Sam's Club and BJ's alternating between regualr and preimium mostly for convenience and to save a few pennies.
Harold
I have done this on my previous ES's('90, '94, '03) to get the best all around economy.......and I've always found that 87 octane works best for my uses.
#32
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I might try a tank of 87 octane and see if it makes a difference. I highly doubt changing grade would mess things up.
Here's my only complaint: I dont understand why my MPG is around 19 - 20 on local streets, and I average 33 MPG easily on the freeway... That's a huge gap. I'm complaining because my commute everyday is 80% local, so the fuel economy doesnt really benefit my situation. So i guess the fuel efficiency is ONLY applicable at high speeds....
Here's my only complaint: I dont understand why my MPG is around 19 - 20 on local streets, and I average 33 MPG easily on the freeway... That's a huge gap. I'm complaining because my commute everyday is 80% local, so the fuel economy doesnt really benefit my situation. So i guess the fuel efficiency is ONLY applicable at high speeds....
#33
Lexus Champion
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Originally Posted by Kaius88
I might try a tank of 87 octane and see if it makes a difference. I highly doubt changing grade would mess things up.
Here's my only complaint: I dont understand why my MPG is around 19 - 20 on local streets, and I average 33 MPG easily on the freeway... That's a huge gap. I'm complaining because my commute everyday is 80% local, so the fuel economy doesnt really benefit my situation. So i guess the fuel efficiency is ONLY applicable at high speeds....
Here's my only complaint: I dont understand why my MPG is around 19 - 20 on local streets, and I average 33 MPG easily on the freeway... That's a huge gap. I'm complaining because my commute everyday is 80% local, so the fuel economy doesnt really benefit my situation. So i guess the fuel efficiency is ONLY applicable at high speeds....
#34
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Sitting still, and accellerating with your foot bearly on the pedal kills gas mileage. You're running the engine at a poor volumetric effecciency , just like most gasoline engine at those speeds. (I calculate it at 80-85% VE. (Which keep in mind. Is phenominal at that rpm range.) And that's at wide open throttle. The more the throttle plate closes, the loss goes through the roof.
The torque convertor never gets to stay locked up for long periods of time.
More parasidic loss from the cooling system.
I'm sorry to be the bearer of bad news Kaius88, but that's simply how every gasoline engine works. You're using the engine in it's worst application range driving it in the city. Unforetunately, every gas engines works that way. It's nothing new to scoff about!![Frown](https://www.clublexus.com/forums/images/smilies/frown.gif)
Gas tank addatives are a joke. They don't clean injectors on these cars & the injectors are almost unheard of to dirty to a clog to begin with. They generally overheat & stick open, or the spring finally wears out past the point that the ECU can no longer control the mixture accureately enough with it. The fuel system is doubled filtered, has been for 20 years. Nor do gas tank addatives contain enough of anything, in the extremely diluted mixture in the gas tank, to do anything constructive to the internals of the engine. It's not going to bust carbon out of the combustion chambers at the recommended 1008:1 ratio (2.0625oz per 10 gallons of fuel)
Oil treatement, chunking a ton in the intake. Sure, that works. Always has.
It's going to raise the octane very slightly.
FYI.
Lexi/Toyota dealers use Toyota brake cleaner, Toyota throttle body cleaner to service an injector when it's off of the car, or do any other mechanical cleaning on the car. Most also do buy FP60. The differance, is when they do actually use the FP60, it's either to remove suspected moisture in the gas tank, or as a solevant in a machine that bolts to the fuel rail that does not dilute the mixture as much. (i.e. motorvac type machine) Because it works better than the Toyota specified injector cleaner.
amf1932, we've all talked about octane before. You're on it exactly. You already know this, but for everyone else, the lower the octane, the more energy the gas has, the more potential power you can make off it, and the lower the emessions. Provided the engine doesn't experiance pre-ignition.
If the engine isn't using the knock sensors to pull ignition timing in an attempt to avoid detonation, It's golden gas. But you already know all of that.
The torque convertor never gets to stay locked up for long periods of time.
More parasidic loss from the cooling system.
I'm sorry to be the bearer of bad news Kaius88, but that's simply how every gasoline engine works. You're using the engine in it's worst application range driving it in the city. Unforetunately, every gas engines works that way. It's nothing new to scoff about!
![Frown](https://www.clublexus.com/forums/images/smilies/frown.gif)
Gas tank addatives are a joke. They don't clean injectors on these cars & the injectors are almost unheard of to dirty to a clog to begin with. They generally overheat & stick open, or the spring finally wears out past the point that the ECU can no longer control the mixture accureately enough with it. The fuel system is doubled filtered, has been for 20 years. Nor do gas tank addatives contain enough of anything, in the extremely diluted mixture in the gas tank, to do anything constructive to the internals of the engine. It's not going to bust carbon out of the combustion chambers at the recommended 1008:1 ratio (2.0625oz per 10 gallons of fuel)
Oil treatement, chunking a ton in the intake. Sure, that works. Always has.
It's going to raise the octane very slightly.
FYI.
Lexi/Toyota dealers use Toyota brake cleaner, Toyota throttle body cleaner to service an injector when it's off of the car, or do any other mechanical cleaning on the car. Most also do buy FP60. The differance, is when they do actually use the FP60, it's either to remove suspected moisture in the gas tank, or as a solevant in a machine that bolts to the fuel rail that does not dilute the mixture as much. (i.e. motorvac type machine) Because it works better than the Toyota specified injector cleaner.
amf1932, we've all talked about octane before. You're on it exactly. You already know this, but for everyone else, the lower the octane, the more energy the gas has, the more potential power you can make off it, and the lower the emessions. Provided the engine doesn't experiance pre-ignition.
If the engine isn't using the knock sensors to pull ignition timing in an attempt to avoid detonation, It's golden gas. But you already know all of that.
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
![Thumb Up](https://www.clublexus.com/forums/images/smilies/thumbsup.gif)
#35
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Originally Posted by Pheonix
Sitting still, and accellerating with your foot bearly on the pedal kills gas mileage. You're running the engine at a poor volumetric effecciency , just like most gasoline engine at those speeds. (I calculate it at 80-85% VE. (Which keep in mind. Is phenominal at that rpm range.) And that's at wide open throttle. The more the throttle plate closes, the loss goes through the roof.
The torque convertor never gets to stay locked up for long periods of time.
More parasidic loss from the cooling system.
I'm sorry to be the bearer of bad news Kaius88, but that's simply how every gasoline engine works. You're using the engine in it's worst application range driving it in the city. Unforetunately, every gas engines works that way. It's nothing new to scoff about!![Frown](https://www.clublexus.com/forums/images/smilies/frown.gif)
Gas tank addatives are a joke. They don't clean injectors on these cars & the injectors are almost unheard of to dirty to a clog to begin with. They generally overheat & stick open, or the spring finally wears out past the point that the ECU can no longer control the mixture accureately enough with it. The fuel system is doubled filtered, has been for 20 years. Nor do gas tank addatives contain enough of anything, in the extremely diluted mixture in the gas tank, to do anything constructive to the internals of the engine. It's not going to bust carbon out of the combustion chambers at the recommended 1008:1 ratio (2.0625oz per 10 gallons of fuel)
Oil treatement, chunking a ton in the intake. Sure, that works. Always has.
It's going to raise the octane very slightly.
FYI.
Lexi/Toyota dealers use Toyota brake cleaner, Toyota throttle body cleaner to service an injector when it's off of the car, or do any other mechanical cleaning on the car. Most also do buy FP60. The differance, is when they do actually use the FP60, it's either to remove suspected moisture in the gas tank, or as a solevant in a machine that bolts to the fuel rail that does not dilute the mixture as much. (i.e. motorvac type machine) Because it works better than the Toyota specified injector cleaner.
amf1932, we've all talked about octane before. You're on it exactly. You already know this, but for everyone else, the lower the octane, the more energy the gas has, the more potential power you can make off it, and the lower the emessions. Provided the engine doesn't experiance pre-ignition.
If the engine isn't using the knock sensors to pull ignition timing in an attempt to avoid detonation, It's golden gas. But you already know all of that.
![Thumb Up](https://www.clublexus.com/forums/images/smilies/thumbsup.gif)
The torque convertor never gets to stay locked up for long periods of time.
More parasidic loss from the cooling system.
I'm sorry to be the bearer of bad news Kaius88, but that's simply how every gasoline engine works. You're using the engine in it's worst application range driving it in the city. Unforetunately, every gas engines works that way. It's nothing new to scoff about!
![Frown](https://www.clublexus.com/forums/images/smilies/frown.gif)
Gas tank addatives are a joke. They don't clean injectors on these cars & the injectors are almost unheard of to dirty to a clog to begin with. They generally overheat & stick open, or the spring finally wears out past the point that the ECU can no longer control the mixture accureately enough with it. The fuel system is doubled filtered, has been for 20 years. Nor do gas tank addatives contain enough of anything, in the extremely diluted mixture in the gas tank, to do anything constructive to the internals of the engine. It's not going to bust carbon out of the combustion chambers at the recommended 1008:1 ratio (2.0625oz per 10 gallons of fuel)
Oil treatement, chunking a ton in the intake. Sure, that works. Always has.
It's going to raise the octane very slightly.
FYI.
Lexi/Toyota dealers use Toyota brake cleaner, Toyota throttle body cleaner to service an injector when it's off of the car, or do any other mechanical cleaning on the car. Most also do buy FP60. The differance, is when they do actually use the FP60, it's either to remove suspected moisture in the gas tank, or as a solevant in a machine that bolts to the fuel rail that does not dilute the mixture as much. (i.e. motorvac type machine) Because it works better than the Toyota specified injector cleaner.
amf1932, we've all talked about octane before. You're on it exactly. You already know this, but for everyone else, the lower the octane, the more energy the gas has, the more potential power you can make off it, and the lower the emessions. Provided the engine doesn't experiance pre-ignition.
If the engine isn't using the knock sensors to pull ignition timing in an attempt to avoid detonation, It's golden gas. But you already know all of that.
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
![Thumb Up](https://www.clublexus.com/forums/images/smilies/thumbsup.gif)
#36
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Another good idea if you want better gas mileage is to NEVER use the Drive-thru window at any restuarants, coffee shops and such. I can care less so i do use drive-thru's but just FYI's for people.
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