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.

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.

marcus · 01-23-2009, 04:28 PM

o o....

SeaYa · 01-30-2009, 01:23 PM

'08 Sedan 5spd man I was getting 42/47 in the summer. Now in Michigan 0-15F for 2 months, I am getting 35/43, so obviously, a much bigger hit when I make short trips (4-10 minutes) since the engine doesn't warm up as much, but still good on my long highway trips (4-6 hr travel times).

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01-24-2009, 08:04 AM	#4
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...

01-23-2009, 04:28 PM	#7
marcus toyota View User's Garage Drives: 2007 Yaris RS Blazed Join Date: Oct 2006 Location: toronto, canada Posts: 3,637	o o....

01-30-2009, 01:23 PM	#8
SeaYa Is about to 'SeaYa' later View User's Garage Drives: 08 MT Sedan Join Date: Jan 2009 Location: PA, USA Posts: 232	'08 Sedan 5spd man I was getting 42/47 in the summer. Now in Michigan 0-15F for 2 months, I am getting 35/43, so obviously, a much bigger hit when I make short trips (4-10 minutes) since the engine doesn't warm up as much, but still good on my long highway trips (4-6 hr travel times).