Just got a new 03 Camry XLE V6. I use Chevron gas. Of the three grades of
chevron gas, the owners manual seems to suggest that the lowest grade is ok.
I'm sure if I use premium that I'll get somewhat better performance but how
much better? Will the low grade do any harm??? All opinions and suggestions
welcomed....

I have a 2002 Camry LE V6 and only use Premium fuel 91 or higher. My manual
states "87 octane required. 91 octane or higher recommended for improved
performance."

thus, 87 will work just fine but if you want the extra performance, then go
with the 91+ octane.


"Jack" <jj@aol.com> wrote in message news:E5HPa.35834$OZ2.5371@rwcrnsc54...

If 87 octane is ok you will not get more from higher octane. Just wasting
money. Higher octane is for higher compression engines and helps prevent
'ping' by slowing down the combustion. If you do not have a higher
compression engine, the higher octane will not do a bit of good.

The important thing is to pick a gasoline that will keep the injection
system clean. That probably depends upon the brand name and not the gasoline
octane. Although some years back, the higher octane gasoline would also
include more additive. I am not sure if that is still true.
"Jack" <jj@aol.com> wrote in message news:E5HPa.35834$OZ2.5371@rwcrnsc54...

What I recommend may be true based on a Camry V6. It's all depend on
what type of engine you have, If your engine has near 10 compression
ratio, then running with lower octane gas is OK. Some old engine that
has low compression ratio about 9, then high octane does not do you
any good.

Some newer engine has knock sensor that will change the ingnition
timing to reduce knock at the expense of power but not many people
would feel the difference. As the engine get older, it does not like
lower octane due to deposit crap in the head.

Also, if you have to sit in traffic under 110F degree, type of fuel
make big difference.

My Accord used to run OK with 89 in the summer. Now it is more happy
with 91.

Just listen to the engine sing. It tells.





"Philip®" <chipstate@earthlink.net> wrote in message news:<lzeQa.45124$C83.3581003@newsread1.prod.itd.e arthlink.net>...

Sorry DTT

I was away and did not see your response until now. I don't know if the Ford
claim has been substantiated. If have had gas producers deny that this
happens (As a journalist, I've interviewed them on this issues.) But Ford
repeatedly has made this assertion in TSBs, advising dealers to tell
motorists NOT to use high octane gasoline in Ford vehicles, all of which are
designed for regular, I think. An exception of course would be older
vehicles that suffer from octane creep and simply cannot be repaired. As
vehicles age, octane requirements often go up for various reasons, including
the build up of deposits in the cylinders. I bet modern cars are less prone
to this.

I don't know how the EPA could be involved in this issue though.


--
Regards,
Anthony Giorgianni

(I prefer that you reply by posting back to the newsgroup. If you must
email: remove "killspam" from reply address. This email address will be
valid for a short time only.)



"DTT" <dtmstran@hotmail.com> wrote in message
news:697a20b8.0307171136.67129a01@posting.google.c om...