What mileage you getting with temps under 30 degrees ? - Page 3 - Toyota Yaris Forums

1stToyota · 01-23-2009, 02:56 PM

Quote:

Originally Posted by CtrlAltDefeat

I'm curious what octane you guys are using... I've been putting premium in mine, because the difference in a 10 gallon tank is only about $2-$3 extra per fill up and in our yari, that's not that often... Seems to have better pickup and mileage. What do you guys think?

Don't use premium unless the vehicle's computer was tuned to run *Premium fuel only* at the factory.

kou · 01-23-2009, 04:18 PM

Quote:

Originally Posted by 1stToyota

Don't use premium unless the vehicle's computer was tuned to run *Premium fuel only* at the factory.

your computer will adjust the timing as close to pre dentanation as it can with the fuel you have in the car.test have proven the fact that any car will produce less power with regular than with premium.

marcus · 01-23-2009, 04:28 PM

o o....

50MPGDream · 01-24-2009, 01:13 AM

Quote:

Originally Posted by kou

test have proven the fact that any car will produce less power with regular than with premium.

who did this "test"? I'd be interested in seeing it

CtrlAltDefeat · 01-24-2009, 08:04 AM

Yea, me too... My informal tests (I.E. how it feels to drive and mileage per tank) seem to show better power and mpg...

1stToyota · 01-24-2009, 09:12 AM

Quote:

Originally Posted by kou

your computer will adjust the timing as close to pre dentanation as it can with the fuel you have in the car.test have proven the fact that any car will produce less power with regular than with premium.

It's a proven fact that Ford TSB's had to be released because they figured out that long cranking times during startup was because owners used premium in cars designed to burn 87 octane. Talking about effecency, not power.

kou · 01-24-2009, 02:01 PM

Quote:

Originally Posted by 1stToyota

It's a proven fact that Ford TSB's had to be released because they figured out that long cranking times during startup was because owners used premium in cars designed to burn 87 octane. Talking about effecency, not power.

what does ford have to do with anything.

kou · 01-24-2009, 02:09 PM

if you have upgraded your car with performance parts and drive like you stole you will get pinging at higher rpm's and full throttle with 87 octane.if you drive like a grandma and your car does'nt get past 3500rpms use 87 octane all you want.toyota recommend 87 octane yes, but with a high compression motor and high rpms i would not use it. even the smart car recommends premium knowing you will get pinging with regular.

BLAZINBLUEVITZ · 01-24-2009, 02:17 PM

Quote:

Originally Posted by 1stToyota

Don't use premium unless the vehicle's computer was tuned to run *Premium fuel only* at the factory.

first time i heard that one......

Quote:

Originally Posted by kou

if you have upgraded your car with performance parts and drive like you stole you will get pinging at higher rpm's and full throttle with 87 octane.if you drive like a grandma and your car does'nt get past 3500rpms use 87 octane all you want.toyota recommend 87 octane yes, but with a high compression motor and high rpms i would not use it.

so what happens when using premium fuel and you drive it like you stole it......

1stToyota · 01-24-2009, 02:20 PM

Quote:

Originally Posted by kou

if you have upgraded your car with performance parts and drive like you stole you will get pinging at higher rpm's and full throttle with 87 octane.if you drive like a grandma and your car does'nt get past 3500rpms use 87 octane all you want.toyota recommend 87 octane yes, but with a high compression motor and high rpms i would not use it.

A modded car and a stock setup are different.

1stToyota · 01-24-2009, 02:22 PM

Quote:

Originally Posted by BLAZINBLUEVITZ

first time i heard that one......

Learn something new everyday.

kou · 01-24-2009, 02:23 PM

the car will not have to retard the timing with premium letting you rev safely with no pinging and all of the power the motor can make.

kou · 01-24-2009, 02:26 PM

anyway i get an average 35mpg in the winter.

1stToyota · 01-24-2009, 02:30 PM

Quote:

Originally Posted by kou

what does ford have to do with anything.

Yeah, I forgot that Ford builds cars that have ignition systems, internal combustion motors, A/F ratios, burntimes, etc, that are exactly opposite of how every other automaker builds their cars now.

1stToyota · 01-24-2009, 02:34 PM

Quote:

Originally Posted by kou

the car will not have to retard the timing with premium letting you rev safely with no pinging and all of the power the motor can make.

You're still talking performance results and driving fast for a modded vehicle on a thread that is about fuel economy?

BLAZINBLUEVITZ · 01-24-2009, 03:17 PM

Quote:

Originally Posted by 1stToyota

Learn something new everyday.

yeah didn't know i can option my car to run "PREMIUM FUEL ONLY" from the factory. i wonder how much more that would have added to my payments......

1stToyota · 01-24-2009, 03:37 PM

Quote:

Originally Posted by BLAZINBLUEVITZ

yeah didn't know i can option my car to run "PREMIUM FUEL ONLY" from the factory. i wonder how much more that would have added to my payments......

So sorry that my original statement zoomed over your head.

"Don't use premium unless the vehicle's computer was tuned to run *Premium fuel only* at the factory."

Was talking about cars like my old '05 GTO, expensive SUVs, SC'd Cobras, other SVT vehicles, etc... that came from the factory with *Premium fuel only* tunes.

BLAZINBLUEVITZ · 01-24-2009, 03:52 PM

Quote:

Originally Posted by 1stToyota

So sorry that my original statement zoomed over your head.

"Don't use premium unless the vehicle's computer was tuned to run *Premium fuel only* at the factory."

Was talking about cars like my old '05 GTO, expensive SUVs, SC'd Cobras, other SVT vehicles, etc... that came from the factory with *Premium fuel only* tunes.

zoomed over not really, just trying to figure out why you like to compare a 4 cylinder to your v8 knowledge. its all good though......

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
-Mileage Thread- -Log your mileage, year, model, color, any problems here...	Kal-El	DIY / Maintenance / Service	322	07-20-2016 10:07 AM
Sedan better gas mileage than LB? 5 month gas chart included	flint_mica_manual	General Yaris / Vitz Discussion	24	03-09-2009 08:24 AM
ACEITES Y MANTENIMIENTOS	Yaris PTY-507	Central and South America	22	10-01-2007 10:57 AM
Performance mods that won't affect/will hardly affect gas mileage??	Mr.Yaris	Performance Modifications	15	07-30-2007 12:32 AM
Tired of poor gas mileage & buying premium gas.	Boosted Peon	New YARIS Purchase Forum	29	08-25-2006 08:59 PM

01-23-2009, 04:28 PM	#39
marcus toyota View User's Garage Drives: 2007 Yaris RS Blazed Join Date: Oct 2006 Location: toronto, canada Posts: 3,637	o o....

01-24-2009, 08:04 AM	#41
CtrlAltDefeat I ♥ Yaris View User's Garage Drives: Black 08 LB MT & red 97 Miata Join Date: Oct 2008 Location: Indianapolis IN Posts: 1,313	Yea, me too... My informal tests (I.E. how it feels to drive and mileage per tank) seem to show better power and mpg...

01-24-2009, 02:09 PM	#44
kou View User's Garage Drives: 08 lb Join Date: Aug 2007 Location: nj Posts: 935	if you have upgraded your car with performance parts and drive like you stole you will get pinging at higher rpm's and full throttle with 87 octane.if you drive like a grandma and your car does'nt get past 3500rpms use 87 octane all you want.toyota recommend 87 octane yes, but with a high compression motor and high rpms i would not use it. even the smart car recommends premium knowing you will get pinging with regular.

01-24-2009, 02:23 PM	#48
kou View User's Garage Drives: 08 lb Join Date: Aug 2007 Location: nj Posts: 935	the car will not have to retard the timing with premium letting you rev safely with no pinging and all of the power the motor can make.

01-24-2009, 02:26 PM	#49
kou View User's Garage Drives: 08 lb Join Date: Aug 2007 Location: nj Posts: 935	anyway i get an average 35mpg in the winter.