Premium for 2010-2011 RX350? (merged threads)
Advanced
Joined: Nov 2008
Posts: 697
Likes: 5
From: NC
To ease our dependence on foreign oil and to replace MTBE which is bad stuff for the environment, the gasoline industry started putting ethanol in gasoline. I don't think this is a mandaatory requirement yet since some gasoline station are selling gasoline without ethanol. But a majority is and there is no distinction between grades.
There are countries like Brazil that gives the option to pump pure ethanol. Some of the cars over there are specifically design to run on it. Corn is still cheaper than gasoline but becoming expensive. I dont mind running on higher than 10% ethanol just to decrease our dependency on foreign crude oil.
There are countries like Brazil that gives the option to pump pure ethanol. Some of the cars over there are specifically design to run on it. Corn is still cheaper than gasoline but becoming expensive. I dont mind running on higher than 10% ethanol just to decrease our dependency on foreign crude oil.
Lead Lap
Joined: Sep 2009
Posts: 462
Likes: 4
From: NV
It must be cheaper to produce ethanol in other countries? When labor, material and supply is cheaper I bet it is.
Lexus Test Driver
Joined: Oct 2005
Posts: 8,809
Likes: 143
From: MA
To ease our dependence on foreign oil and to replace MTBE which is bad stuff for the environment, the gasoline industry started putting ethanol in gasoline. I don't think this is a mandaatory requirement yet since some gasoline station are selling gasoline without ethanol. But a majority is and there is no distinction between grades.
Advanced
Joined: Nov 2008
Posts: 697
Likes: 5
From: NC
E85 ethanol which is use in gasoline blend sell for $2.91 per gallon in August. So yes it looks like E85 is a bit more expensive. But at the current price of gasoline. Remember gasoline has gone way up to ...$4 a gallon or so several years ago. Production of ethanol for gasoline will be again attractive once crude oil creeps up. Who knows.
It must be cheaper to produce ethanol in other countries? When labor, material and supply is cheaper I bet it is.
It must be cheaper to produce ethanol in other countries? When labor, material and supply is cheaper I bet it is.
Rookie
Joined: Feb 2010
Posts: 60
Likes: 0
From: NY
What Kind of Gas?
I just read somewhere that Premium 89 octane gas is required for the 2010 RX 350. Is this true??? I did a lot of research before making my purchase and I don't remember ever coming across this until now.
At one time I was considering the Audi Q5 and I quickly changed my mind as soon as I found out it required Premium gas so now this is quite a shocker to me.
I haven't filled up yet and want to make sure I do the right thing regardless if it's going to cost me extra for gas.
At one time I was considering the Audi Q5 and I quickly changed my mind as soon as I found out it required Premium gas so now this is quite a shocker to me.
I haven't filled up yet and want to make sure I do the right thing regardless if it's going to cost me extra for gas.
Driver
Joined: Feb 2008
Posts: 147
Likes: 0
From: NC
https://www.clublexus.com/forums/rx-...r-regular.html
Premium is what Lexus recommend on 350. People tend to say they do not notice the different between using different gas. But many seems not to understand how car engine, knock sensor, timing, ignition work anyway.
Premium is what Lexus recommend on 350. People tend to say they do not notice the different between using different gas. But many seems not to understand how car engine, knock sensor, timing, ignition work anyway.
Lexus Test Driver
Joined: Dec 2009
Posts: 1,146
Likes: 7
From: AZ
That's what is recommended. I believe you can use a lower grade but you may get pinging and lower mpg. My whole life I have bought nothing but premium, never had trouble with any vehicle. Depends on how long you think you will have the RX.
I was looking at the Q5 as well. It did not have as much cargo space, which I use a lot, and the reliability factor was key. Closest dealer was 25 miles away.
I was looking at the Q5 as well. It did not have as much cargo space, which I use a lot, and the reliability factor was key. Closest dealer was 25 miles away.
Pole Position
Joined: Dec 2009
Posts: 204
Likes: 1
From: MD
When my wife fills the RX she only puts regular in because the dealer told her that won't harm the RX but she would get less performance. I always put in premium and tend to like to use Shell or Texaco.
Lead Lap
Joined: Sep 2009
Posts: 462
Likes: 4
From: NV
In page 606 of the Owner's Manual, they recommend premium unleaded gasoline with minimum octane of 91.
Pole Position
Joined: May 2009
Posts: 2,838
Likes: 26
From: GA
I can't find the sight right now, I'll look again when I have time but in a 'brand' rating nationally in the U.S., Racetrack was #1 and Shell was #2. I use Shell for my 5% off the bill. At today's prices that's significant.
Lexus Champion
Joined: Aug 2007
Posts: 4,507
Likes: 38
From: Bethlehem Twsp. Pennsylvania
The manual actually 'suggests' 91 octane. My service tech said recently the factory rep said 89 in our case is plenty good and will not cause adverse affects. It seems in many parts of the country the grades very in octane ratings. Here in the SE, they are '87', '89', and '93' which is a higher premium than recommended. Other areas seem to have '91' as the highest octane.
I can't find the sight right now, I'll look again when I have time but in a 'brand' rating nationally in the U.S., Racetrack was #1 and Shell was #2. I use Shell for my 5% off the bill. At today's prices that's significant.
I can't find the sight right now, I'll look again when I have time but in a 'brand' rating nationally in the U.S., Racetrack was #1 and Shell was #2. I use Shell for my 5% off the bill. At today's prices that's significant.
