This Could End Many Discussions... - Page 2 - Toyota Yaris Forums

RUFFSTUFF · 11-25-2009, 08:38 AM

Quote:

Originally Posted by Wattz

My last car's manual strongly discouraged using higher octane fuel as it could cause engine knock.

That may be a first... You sure about that?

Bob Dog · 11-25-2009, 10:24 AM

no longer have the neon, on longer have the source

Yaris Hilton · 11-25-2009, 02:14 PM

A quick Google turned up a used car dealer saying it was a recommended buy in 2001.

2+2 · 11-25-2009, 03:24 PM

Quote:

Originally Posted by Yaris Hilton

A quick Google turned up a used car dealer saying it was a recommended buy in 2001.

It doesn't look like 2001.

I remember CR saying good things about the Neon, probably when it first came out. They went on and on about the "cab forward" design and how roomy it was. Maybe some of the writers owned some Chrysler stock and were trying to help things along a little.

The only CR issues I kept are the annual auto issues so when they refer to a write up they did in another issue I don't have it.

Bob Dog · 11-25-2009, 06:55 PM

Yup: cab forward design was what Consumer Reports got all sexually excited about and how wonderful the Dodge new engineering on the POS was. The one I speak off was a 1999 bought in 2000 at the model change close out. Car and Driver might have been the one who made it Car of the Year. They drooled over the henious little monsters as well. I read a bunch of reviews before I bought it. Chrysler had redesigned almost all of their line and were supposed to be some kind of late 20th century design miracle. I expect some pockets were well feathered and some folks were just deluded. I had just come off a Metro and wanted to keep reasonable gas milage, but was also hungry for enough horsepower to climb a hill and pass. By 32,000 miles the heads were dripping oil and it had developed a pull to the right upon acceleration. It was my last small American car ever.

RUFFSTUFF · 11-25-2009, 07:05 PM

I'm not sure I would let a $3 magazine decide which car I should buy. I might use them to gather information on specs and such, but other than that no way on their review. I doubt I've ever bought anyone's Car of the Year or top choice (hell the Yaris doesn't get glowing reviews peeps!) but the only craptastic car we've ever had was a 94 Hyundai Elantra my wife bought before we met. May it burn in auto hell forever.

RUFFSTUFF · 11-25-2009, 07:08 PM

Wow, that Neon looks awfully alot like a Yaris Sedan.

supmet · 11-25-2009, 09:30 PM

Quote:

Originally Posted by RUFFSTUFF

Wow, that Neon looks awfully alot like a Yaris Sedan.

wow, that's a low blow.. I think it looks a lot more like an echo

Wattz · 11-26-2009, 12:39 AM

My original post was all from memory. If the link worked (it's the full manual), you could see that the section before that mentions that the engine may knock at times and that it's normal for it to do so occasionally. That's where my engine knock statement came from.

Considering that premium fuel would exacerbate cold start problems (regardless of the root cause), I think Ford's general statement regarding premium fuel stands well enough on its own. These small engines are designed for fuel that burns easily. Using a higher octane is working against the design.

RUFFSTUFF · 11-26-2009, 07:18 AM

Quote:

Originally Posted by Wattz

My original post was all from memory. If the link worked (it's the full manual), you could see that the section before that mentions that the engine may knock at times and that it's normal for it to do so occasionally. That's where my engine knock statement came from.

Considering that premium fuel would exacerbate cold start problems (regardless of the root cause), I think Ford's general statement regarding premium fuel stands well enough on its own. These small engines are designed for fuel that burns easily. Using a higher octane is working against the design.

Engine knock normal? Ughhhh. Not to pick hairs but premium fuel is not going to cause engine knock. Not a general statement (at least what you posted) as cold starting relates to a specific time in the cars' operation.

Definitely agree that running premium fuel in a low compression motor designed to run regular gas is not going to make it run better... but with less power and perhaps lower efficiency. Unless, of course, it is a Ford motor that knocks occasionally, so I supposed Ford would have you run tap water...

Wattz · 11-26-2009, 12:00 AM

Quote:

Originally Posted by camelll

, What kind of car would that have been wattz?

2001 Ford Focus.

Page 231 of the manual reads:

"Fuel quality

If you are experiencing starting, rough idle, or hesitation problems during a cold start, try a different brand of "Regular" unleaded gasoline. "Premium" unleaded gasoline is not recommended (particularly in the United States) because it may cause these problems to become more pronounced. If the problems persist, see your dealer or qualified service technician."

http://www.motorcraftservice.com/pub.../01focog4e.pdf

Probably a Ford Zetec engine issue mainly... But I'll stick with manufacturer recommended fuel octane.

RUFFSTUFF · 11-26-2009, 12:20 AM

Quote:

Originally Posted by Wattz

2001 Ford Focus.

Page 231 of the manual reads:

"Fuel quality

If you are experiencing starting, rough idle, or hesitation problems during a cold start, try a different brand of "Regular" unleaded gasoline. "Premium" unleaded gasoline is not recommended (particularly in the United States) because it may cause these problems to become more pronounced. If the problems persist, see your dealer or qualified service technician."

http://www.motorcraftservice.com/pubs/content/~WO1FOC/~MUS~LEN/41/01focog4e.pdf

Probably a Ford Zetec engine issue mainly... But I'll stick with manufacturer recommended fuel octane.

Thanks for the info but it looks like you are misinterpreting what you are talking about. It doesn't say don't use premium, it is saying if your car cannot idle or start properly on regular gas don't use premium because it will make it worse. That makes sense. If your car cannot idle or start properly then there is something wrong (either mechanically or with with fueling) where your car cannot burn the fuel properly. A higher octane (which is more resistant to burning) would make this case worse. I don't believe your quote refers to not using premium if your car operates properly nor do I think it is saying that using premium will cause these issues to occur if your car was running fine on regular. The entire context of your quote deals with problems.

And your link doesn't work without an account.

RUFFSTUFF · 11-26-2009, 12:21 AM

Quote:

Originally Posted by Wattz

But I'll stick with manufacturer recommended fuel octane.

Barring modifications, I think that is a good idea.

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11-25-2009, 10:24 AM	#2
Bob Dog DARK PHASE OF THE MOON Drives: 07 liftback Join Date: Apr 2009 Location: the Boondocks, NC Posts: 993	no longer have the neon, on longer have the source

11-25-2009, 02:14 PM	#3
Yaris Hilton Half a Bubble Off Plumb Drives: 2009 Yaris Sedan Join Date: Mar 2009 Location: Bristol, Tennessee, USA Posts: 1,593	A quick Google turned up a used car dealer saying it was a recommended buy in 2001.

11-25-2009, 06:55 PM	#5
Bob Dog DARK PHASE OF THE MOON Drives: 07 liftback Join Date: Apr 2009 Location: the Boondocks, NC Posts: 993	Yup: cab forward design was what Consumer Reports got all sexually excited about and how wonderful the Dodge new engineering on the POS was. The one I speak off was a 1999 bought in 2000 at the model change close out. Car and Driver might have been the one who made it Car of the Year. They drooled over the henious little monsters as well. I read a bunch of reviews before I bought it. Chrysler had redesigned almost all of their line and were supposed to be some kind of late 20th century design miracle. I expect some pockets were well feathered and some folks were just deluded. I had just come off a Metro and wanted to keep reasonable gas milage, but was also hungry for enough horsepower to climb a hill and pass. By 32,000 miles the heads were dripping oil and it had developed a pull to the right upon acceleration. It was my last small American car ever.

11-25-2009, 07:05 PM	#6
RUFFSTUFF Banned Drives: 2009 TOYOTA YARIS SEDAN Join Date: Aug 2009 Location: KINGSLAND, GA Posts: 381	I'm not sure I would let a $3 magazine decide which car I should buy. I might use them to gather information on specs and such, but other than that no way on their review. I doubt I've ever bought anyone's Car of the Year or top choice (hell the Yaris doesn't get glowing reviews peeps!) but the only craptastic car we've ever had was a 94 Hyundai Elantra my wife bought before we met. May it burn in auto hell forever.

11-25-2009, 07:08 PM	#7
RUFFSTUFF Banned Drives: 2009 TOYOTA YARIS SEDAN Join Date: Aug 2009 Location: KINGSLAND, GA Posts: 381	Wow, that Neon looks awfully alot like a Yaris Sedan.

11-26-2009, 12:39 AM	#9
Wattz Drives: 2008 Yaris Hatch Join Date: Oct 2009 Location: Florida Posts: 36	My original post was all from memory. If the link worked (it's the full manual), you could see that the section before that mentions that the engine may knock at times and that it's normal for it to do so occasionally. That's where my engine knock statement came from. Considering that premium fuel would exacerbate cold start problems (regardless of the root cause), I think Ford's general statement regarding premium fuel stands well enough on its own. These small engines are designed for fuel that burns easily. Using a higher octane is working against the design.