Fuel Grade Discussion: Premium or Regular? What are you using in your Lexus NX? - Page 3 - Lexus NX Forum
 11Likes
Reply
 
Thread Tools
post #21 of 28 (permalink) Old 05-22-2015, 01:28 PM
Senior Member
 
Join Date: Jul 2014
Posts: 246
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 59 Post(s)
Quote:
Originally Posted by SanT View Post
Thanks for the link. Read it and the gist seems to be: if your engine is designed for premium, use premium; if designed to run on regular, use regular.
That's the way it should be, the average person has no good reason for doing anything aside from that, and for that average person going higher than they need is just burning a hole in their wallet.
David is offline  
Sponsored Links
Advertisement
 
post #22 of 28 (permalink) Old 05-22-2015, 02:02 PM
Junior Member
 
roho's Avatar
 
Join Date: Mar 2014
Posts: 14
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
On page 599 of the Lexus manual, it states,

You must only use unleaded gasoline in your vehicle.
Select Premium unleaded gasoline with an octane rating of 91(research octane number96) or higher required for optimum engine performance. If 91 octane cannot be obtained , you may use unleaded gasoline with an octane rating as low a 87(reseach octane number 91). Use of unleaded gasoline with an octane rating lower than 91 may result in engine knocking and significantly reduced performance. Persistent knocking can lead to engine damage and should be corrected by refueling with higher octane unleaded gasoline.


My area has only 87, 89, and 93 available. I read in another forum where some say it is ok to "blend" your fuel. So fill the tank with 93 and when it's half empty I fill with up 89. It's a small savings but every penny counts and the NX is running fine. Anyone using regular(87) is asking for engine trouble in the long run.
roho is offline  
post #23 of 28 (permalink) Old 05-22-2015, 02:37 PM
Banned
 
Join Date: Apr 2014
Posts: 331
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 31 Post(s)
IMO, IF the cost difference b/w premium vs. regular or mid-grade gives you stress, then maybe you stretch your wallet too much in getting NX.

Remember, buying a car is one thing...MAINTAINING it is another. If you cannot do the second part properly, then you should not buy the car in the first place.

BTW, maintaining your car properly does NOT include using something that the car does not NEED...for example, changing oil every 3000 miles instead of what the Owner's Manual (or computer) says.

Just my 1 cent.

Last edited by Thai; 05-22-2015 at 02:39 PM.
Thai is offline  
Sponsored Links
Advertisement
 
post #24 of 28 (permalink) Old 05-22-2015, 04:59 PM
Senior Member
 
Join Date: Dec 2013
Posts: 800
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 164 Post(s)
I agree that you need to factor in maintenance when you are trying to see if you can afford your vehicle. Now if people are experiencing car troubles or bad fuel mileage, I'll ask them what kind of fuel they are using.



mister is offline  
post #25 of 28 (permalink) Old 05-28-2015, 02:07 PM
Senior Member
 
Join Date: Jul 2014
Posts: 246
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 59 Post(s)
Quote:
Originally Posted by roho View Post
On page 599 of the Lexus manual, it states,

You must only use unleaded gasoline in your vehicle.
Select Premium unleaded gasoline with an octane rating of 91(research octane number96) or higher required for optimum engine performance. If 91 octane cannot be obtained , you may use unleaded gasoline with an octane rating as low a 87(reseach octane number 91). Use of unleaded gasoline with an octane rating lower than 91 may result in engine knocking and significantly reduced performance. Persistent knocking can lead to engine damage and should be corrected by refueling with higher octane unleaded gasoline.


My area has only 87, 89, and 93 available. I read in another forum where some say it is ok to "blend" your fuel. So fill the tank with 93 and when it's half empty I fill with up 89. It's a small savings but every penny counts and the NX is running fine. Anyone using regular(87) is asking for engine trouble in the long run.
Thanks a lot for including that. The mixture of 89 and 93 does more good than the instant savings you get at the pump but apparently using higher than required octane burns fuel faster. 2 birds with one stone.
David is offline  
post #26 of 28 (permalink) Old 04-29-2016, 01:55 PM
Junior Member
 
Join Date: Apr 2016
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
NX Fuel Requirement

Although there is NO MENTION of a fuel/octane 'requirement' inside the NX's fuel cap area, the owner's manual clearly states that ONLY premium, unleaded gas should be used. It goes on to say that the premium octane 'rating' should be 91 or higher.
GlenK likes this.
Djuroslav is offline  
post #27 of 28 (permalink) Old 05-04-2016, 01:19 PM
Senior Member
 
Join Date: Jul 2014
Posts: 246
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 59 Post(s)
On the flip side, some people leasing these might be putting in regular gas and not the level of premium that's required. Just something to keep in mind for anyone who plans on buying one used down the road. If there's any way to tell if this was done, then by all means do the testing required.
David is offline  
post #28 of 28 (permalink) Old 05-10-2016, 03:18 PM
Member
 
Join Date: May 2016
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Quote:
Originally Posted by David View Post
On the flip side, some people leasing these might be putting in regular gas and not the level of premium that's required. Just something to keep in mind for anyone who plans on buying one used down the road. If there's any way to tell if this was done, then by all means do the testing required.
This is the key thing. It'll be hard to tell, especially if it's your first time getting in one. Normally you wouldn't know any difference, especially in sound, performance, etc.
ProfessorX is offline  
Reply

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel Mileage Thread mojo Lexus NX Fuel Economy Discussion 22 05-21-2015 08:54 AM
Just how fuel efficient will the Lexus NX 300h be? mister Lexus NX Fuel Economy Discussion 8 12-30-2014 02:37 PM
Lexus aims NX crossover at German premium brands in China! thaohaitrieu8 New 2014 NX General Discussion Forum 3 10-24-2014 07:58 PM
NX300h Fuel Economy PapaT Lexus NX Fuel Economy Discussion 12 06-27-2014 06:30 PM
Lexus aims NX crossover at German premium brands in China NXorable New 2014 NX General Discussion Forum 0 04-11-2014 12:07 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome