best gasoline grade for rx 300

[l***@gmail.com]

Hi, I have a 2001 rx 300.
I'm wondering what's the best type of gasoline? My salesman recommended
mid-grade, but it seems like the manual recommends hi-grade.
Anyone have any recommendations?

my RX 300 lexus goes down to hell when someone ( wife and kids) put 87 octane...the car will hold back and start vibrating .....
lexus requires high octane gas
like someone said , if you are going to put cheap octane gas in a Lexus, dont buy it...and this goes for BMW, Mercedes, Audi and any good car...
now...Mazda's 3 take whatever...!!!!! the cheapest u can find, bcs of the processing the skytech gives the gas....then again, the Mazda 3 is a very slow car with no kick or pick up....u can die driving a Mazda 3 if u have to accelerate to pass another car.....it just won't do it.

[l***@gmail.com]

Follow the manual. Most Lexus' (if not all) require high octane fuel.
well, i totally disagree w u..and i had 3 RX 300, 350 and 450 ...and now i drive X5;s ...the rx lexus will suffer big big big on 87 octane....i still have one of them a rx300 2003 and my wife put 87 octane and it went down like a body bag, lost power, holds back and vibrates .....

"Require" is the word that caught my attention. This is not factually true.
Any lexus automobile (and most of today's engines) will work on a range of
fuels. You can put 87 octane in your RX300 and never have a problem. Most
engineers will tell you, though, that you will suffer a performance
decrease--the margin of decrease is where you get tempers flaring, though.
The engine is intelligent enough to adjust to variations in the fuel type
(sometimes higher or lower octane, sometimes the brand of gas varies
tremendously, sometimes just a bad tank of gas). You may get some pinging,
but even though will be drastically reduced to what it would have been some
years ago because of the time-fired reaction of the pistons. Most people
would say that your gas mileage would be affected as a result--again
opinions differ as to how much. If you find it to be a great difference,
then maybe using 91 makes economic senses.
The manuals does indeed say 91 octane, and if you want to guarantee the best
performance, put that octane in your vehicle. Many people might say (and
they have a point, though I am not sure I totally agree with them) that if
you are worried about the 20 cent difference between 87 and 91 you should
not be buying a Lexus--others would say it is all about not paying for what
you really do not need--like getting your oil changed at the Lexus dealer
instead of a local machanic who charges you half the price you would have
paid.
In the end, do not loose too much sleep over it. Also, be glad gas is
something like 80 cents cheaper around my parts than it was just a while
back.