Octane Required for Toyota Tundra and Tacoma??

Told many different things by many people. Will the 2007 Tundra and
Tacoma run just fine on regular gas?

On Sun, 09 Sep 2007 16:46:49 -0400, Gareth <gareth@capecod.net> wrote:

>
>Told many different things by many people. Will the 2007 Tundra and
>Tacoma run just fine on regular gas?

My 2005 Tacoma with the same V6 as the '07 "runs fine" on regular,
but is cheaper per mile, by a (WHOLE PENNY! <G>) to drive on the
"recommended" by the manual premium. I don't notice a performance
difference between 87 or 92 octane.

I have MPG data on every fill-up, back to March, 2005. My truck gets
a tad better MPG on 92, more than overcoming the ~ 30 cent / gallon
difference.

On Sep 9, 1:46 pm, Gareth <gar...@capecod.net> wrote:
> Told many different things by many people. Will the 2007 Tundra and
> Tacoma run just fine on regular gas?

My 2002 Corolla suggests regular octane but I do notice that the
middle grade tends to run better and give me slightly better MPG than
regular octane. Also, if it makes the car run better and I get better
mileage, it seems worth it. Perhaps it's doing nothing but hitting my
pocket book harder but it's also possible it's leaving less carbon
deposits since it burns hotter... who knows. For now though, it seems
to be working well for me and I see no reason to change that.

I've read where others have used a lesser octane than what the manual
says. I believe most Toyota's will have the ECU adjust for this
although as always, it's probably better to run the octane that the
manual suggests and nothing less although I have seen plenty run a
lesser octane and so far, aren't seeing any issues.

Up to you I suppose.

mrsteveo wrote:
> On Sep 9, 1:46 pm, Gareth <gar...@capecod.net> wrote:
>> Told many different things by many people. Will the 2007 Tundra and
>> Tacoma run just fine on regular gas?
>
> My 2002 Corolla suggests regular octane but I do notice that the
> middle grade tends to run better and give me slightly better MPG than
> regular octane. Also, if it makes the car run better and I get better
> mileage, it seems worth it. Perhaps it's doing nothing but hitting my
> pocket book harder but it's also possible it's leaving less carbon
> deposits since it burns hotter... who knows.

What makes you think it burns hotter? All a high octane rating means is
that the gasoline is less likely to have premature detenation. A higher
octane does not mean that there is more energy in the gasoline.

> For now though, it seems
> to be working well for me and I see no reason to change that.
>
> I've read where others have used a lesser octane than what the manual
> says. I believe most Toyota's will have the ECU adjust for this
> although as always, it's probably better to run the octane that the
> manual suggests and nothing less although I have seen plenty run a
> lesser octane and so far, aren't seeing any issues.

Almost all cars made today have an ECU to adjust for different factors,
like the temperature, gasoline, and air density (which changes with
things like the altitude).

Jeff

> Up to you I suppose.
>

That's right, I imagine my valves hitting the pistons or whatever that
makes a repeated ticking sound when I step on the pedal.
What exactly is that sound coming from?
>
> Based on my experience, it's most noticeable when accelerating. Sounds like
> ticking.
>

"EdV" <systmengr@m> wrote in message
news:1189445756.644013.129660@k79g2000hse. o...
>>
>> Based on my experience, it's most noticeable when accelerating. Sounds
>> like
>> ticking.
>>
>

> That's right, I imagine my valves hitting the pistons or whatever that
> makes a repeated ticking sound when I step on the pedal.
> What exactly is that sound coming from?

Read those links in my last message. It's explained nicely.

"Gareth" <gareth@capecod.net> wrote in message
news:46E56E24.5030903@capecod.net...
> mrv@kluge.net wrote:
>
> I think all these comments are very interesting. I did check out the
> Toyota tundra site and they recommended a minimal of 87 octane without
> elaboration. I do not have a manual or yet own one of these trucks, but am
> strongly considering ownership. Dealer said he has no idea where I can
> find an owners manual. I use the techron in my ancient corolla and it is a
> wonderful product.
> Thanks so much for the words of wisdom!
>
> gary

The dealer doesn't know where to find an owner's manual? Is this a Toyota
dealer or a used car dealer ?
If it's a Toyota dealer, he might go so far as to look in one of his cars'
glove compartment, don't you think?
And failing everything else, how about going to a Toyota dealer and asking
him the octane requirement?

mack wrote:
> "Gareth" <gareth@capecod.net> wrote in message
> news:46E56E24.5030903@capecod.net...
>> mrv@kluge.net wrote:
>>
>> I think all these comments are very interesting. I did check out the
>> Toyota tundra site and they recommended a minimal of 87 octane without
>> elaboration. I do not have a manual or yet own one of these trucks, but am
>> strongly considering ownership. Dealer said he has no idea where I can
>> find an owners manual. I use the techron in my ancient corolla and it is a
>> wonderful product.
>> Thanks so much for the words of wisdom!
>>
>> gary
>
> The dealer doesn't know where to find an owner's manual? Is this a Toyota
> dealer or a used car dealer ?
> If it's a Toyota dealer, he might go so far as to look in one of his cars'
> glove compartment, don't you think?
> And failing everything else, how about going to a Toyota dealer and asking
> him the octane requirement?
>
>

It was a Toyota dealer.

mrsteveo wrote:
>
> I don't get why for an owners manual -- anyone would go to the dealer
> without seeing if it's on eBay first.

You can read it for free at the dealer?

> The iGuide feature is a big improvement for Toyota. Too bad they only
> cover a few models at this time. Hopefully the list will be expanded.
> Other manufacturers have been providing online copies of owner's
> guides for many years. I guess the big T is finally trying to improve
> their Customer Service. They might even get out of last place one day.
> Now if they quit running those ridiculously misleading Tundra
> commercials......
>
> Ed
>

Thanks guys for the link to the iguide. This is very helpful.