Go Back   Club Lexus Forums > Lexus Model Forums > GS Models > GS - Fourth Generation
Sign in using an external account
Register Forgot Password?

4GS Fuel discussion Premium or Regular Gas? (merged threads)

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 01-29-13, 01:56 PM   #61
jkeifer3
Lexus Test Driver
Trader Score: (0)
 
jkeifer3's Avatar
 
Join Date: Aug 2005
Location: VA
Posts: 886
Default

Follow the recommendations in the owner's manual. The engine management system has knock sensors and will retard the timing in the presence of pre-ignition caused by low octane gas but that's not the best way to run the engine. FWIW, I use premium or the mid-grade available at most stations.
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
__________________
62 Austin Healey Sprite (sold), 64 Triumph TR-4 (sold), 68 Chevrolet Corvette 427 c.i. 435 h.p. (sold), 73 Chevy Nova SS-350 replaced with 427 cid big block (sold), 82 & 89 Porsche 928s (sold), 90 Taurus SHO (sold), 96 Fix Or Repair Daily Taurus (sold), 95 Lexus SC-400 (sold), 99 Corvette (sold), 02 Corvette Z-06 (sold), 04 Lexus SC-430 (sold), 06 Lexus GS-300AWD (sold), 09 Mazda CX-7 (sold), 08 Lexus IS-F MMR (sold), 11 Jeep Grand Cherokee (current), 13 GS-350 RR (current)
jkeifer3 is offline   Reply With Quote
Old 01-29-13, 01:59 PM   #62
jkeifer3
Lexus Test Driver
Trader Score: (0)
 
jkeifer3's Avatar
 
Join Date: Aug 2005
Location: VA
Posts: 886
Default

Quote:
Originally Posted by k20eg View Post
Did you check the spare tire in the trunk? In our rx 350 the light came on and it was the spare tire that was flat.
Not to hijack the thread, but I didn't know the spare was being monitored by the TPM System. Good to know!
__________________
62 Austin Healey Sprite (sold), 64 Triumph TR-4 (sold), 68 Chevrolet Corvette 427 c.i. 435 h.p. (sold), 73 Chevy Nova SS-350 replaced with 427 cid big block (sold), 82 & 89 Porsche 928s (sold), 90 Taurus SHO (sold), 96 Fix Or Repair Daily Taurus (sold), 95 Lexus SC-400 (sold), 99 Corvette (sold), 02 Corvette Z-06 (sold), 04 Lexus SC-430 (sold), 06 Lexus GS-300AWD (sold), 09 Mazda CX-7 (sold), 08 Lexus IS-F MMR (sold), 11 Jeep Grand Cherokee (current), 13 GS-350 RR (current)
jkeifer3 is offline   Reply With Quote
Old 01-29-13, 04:37 PM   #63
HUSKERnKS
Pole Position
Trader Score: (0)
 
Join Date: Jan 2011
Location: KS
Posts: 315
Default

IMO If you can't afford the utilities, don't buy the house.
HUSKERnKS is offline   Reply With Quote
Old 01-29-13, 08:09 PM   #64
T4Fun
Lexus Test Driver
Trader Score: (0)
 
T4Fun's Avatar
 
Join Date: Apr 2010
Location: Pennsylvania
Posts: 1,114
Default

if you cant hear or feel the difference between 87 and 93 octane, then by all means, go ahead and use the cheaper stuff. long term, it will do damage to the engine, and there goes your lexus warranty.

performance wise, driving other cars, there is a definite difference. the premium gives you smoother sounding engine with more power
__________________
2010 GX 460 Premium- Starfire Pearl - Sepia - ML - Park Assist - sold

2014 GX 460 Luxury - Starfire Pearl - Sepia - Driver support.
T4Fun is offline   Reply With Quote
Old 02-01-13, 01:14 PM   #65
lexuspcl88
Driver School Candidate
Trader Score: (0)
 
Join Date: Jan 2013
Location: Trinidad and Tobago
Posts: 45
Forgot, I do go there sometimes No siree
Thumbs down Lexus SC

Quote:
Originally Posted by jkeifer3 View Post
Follow the recommendations in the owner's manual. The engine management system has knock sensors and will retard the timing in the presence of pre-ignition caused by low octane gas but that's not the best way to run the engine. FWIW, I use premium or the mid-grade available at most stations.
I have a lexus GS300 year2006 and a lexus GS 350 2007, my son car.
I owned a lexus 1996 and a 97 sold.
What exactly is the SC ? I see rfe to ot a lot of the times.
Lexuspcl88
lexuspcl88 is offline   Reply With Quote
Old 06-21-13, 05:31 PM   #66
Stew4HD
Lead Lap
Trader Score: (0)
 
Stew4HD's Avatar
 
Join Date: Jun 2013
Location: H-Town TX
Posts: 514
Default Regular or Premium?

I have looked and looked around but have not found the answer: This probably a dumb question but... what kind of gas does the GS 350 require? Regular or premium?

Thanks
Stew4HD is offline   Reply With Quote
Old 06-21-13, 05:50 PM   #67
HUSKERnKS
Pole Position
Trader Score: (0)
 
Join Date: Jan 2011
Location: KS
Posts: 315
Default

Premium...
HUSKERnKS is offline   Reply With Quote
Old 06-21-13, 06:18 PM   #68
sydtoosic
Lexus Champion
Trader Score: (0)
 
sydtoosic's Avatar
 
Join Date: Mar 2011
Location: GA
Posts: 4,273
sydtoosic
Default

premium all day...
__________________
13 LS460
sydtoosic is offline   Reply With Quote
Old 06-21-13, 06:40 PM   #69
Stew4HD
Lead Lap
Trader Score: (0)
 
Stew4HD's Avatar
 
Join Date: Jun 2013
Location: H-Town TX
Posts: 514
Default

Thanks! I am used to it.. my TL is the same
Stew4HD is offline   Reply With Quote
Old 06-21-13, 07:13 PM   #70
SW13GS
Lexus Fanatic
Trader Score: (0)
 
SW13GS's Avatar
 
Join Date: May 2012
Location: MD
Posts: 7,177
Default

I always ran regular in my ES even though it said it required Premium with no issues, but with the direct injection and all I wouldn't consider running anything but premium in the GS.
__________________

2013 GS350 AWD Luxury Package, Liquid Platinum with Flaxen Interior
2014 Jeep Grand Cherokee Overland, Maximum Steel with Indigo Blue/Brown interior
~Previous Lexus Vehicles~
2010 ES350, 2003 ES300 In the family: 2004 LS430, 1998 LS400
SW13GS is offline   Reply With Quote
Old 06-21-13, 07:26 PM   #71
ECL
Lead Lap
Trader Score: (0)
 
Join Date: May 2011
Location: AZ
Posts: 442
Default

My 1994 SC400 "requires" premium. I have used regular in it for almost twenty years without any issues. YMMV.
ECL is offline   Reply With Quote
Old 06-21-13, 07:29 PM   #72
mitsuguy
Maintenance Moderator
Trader Score: (2)
 
mitsuguy's Avatar
 
Join Date: May 2005
Location: Missouri
Posts: 6,251
Default

Quote:
Originally Posted by ECL View Post
My 1994 SC400 "requires" premium. I have used regular in it for almost twenty years without any issues. YMMV.
So long as you are ok with slightly reduced power and not quite as good fuel economy, nothing to worry about....
__________________
-cody: maintenance forum moderator
- Bridgestone/Firestone, Michelin/BFGoodrich certified
- ASE certified, Motor Vehicle Inspector, HVAC Licensed
- Lots more certs, too many to list here!

2001 Lexus IS300 - 500whp/476wtq (Mustang Dyno)PTE 6765/Custom AEM EMS - Auburn Sky Pearl (1 of 1348)
1999 Isuzu VehiCross 285/75-16 Destination MT's - Astral Silver Metallic (1 of 1021)
mitsuguy is offline   Reply With Quote
Old 06-21-13, 09:07 PM   #73
ECL
Lead Lap
Trader Score: (0)
 
Join Date: May 2011
Location: AZ
Posts: 442
Default

Quote:
Originally Posted by mitsuguy View Post
So long as you are ok with slightly reduced power and not quite as good fuel economy, nothing to worry about....
I get 23-24 mpg in town with the four liter V-8 in my SC on regular gas.
ECL is offline   Reply With Quote
Old 06-21-13, 09:12 PM   #74
Oconee1985
Driver
Trader Score: (2)
 
Join Date: May 2005
Location: GA
Posts: 133
Default

When I bought my 00 GS 300 the Lexus dealer had a print out from a guy who drove about 30 miles to work and back each day. He had done a study where he ran a tank a couple of tanks of premium and then a couple of tanks of regular. The difference was the regular cost less but got less mpg that the premium ended so much so that the premium ended up being a better deal.
__________________
94 SC 400
00 GS 300
Oconee1985 is offline   Reply With Quote
Old 06-21-13, 09:17 PM   #75
Nexson
Lead Lap
Trader Score: (0)
 
Nexson's Avatar
 
Join Date: Sep 2012
Location: FL
Posts: 477
Default

GS requires premium for best performance of the vehicle. I reach for regular every time. Everyone is different and will do as they please.
Nexson is offline   Reply With Quote
Old 06-21-13, 09:17 PM
 
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Regular gas in LS460 sktn77a LS460, LS460L and LS600h 1 06-11-14 09:03 AM
Premium Gas vs. Regular pierpark GX - Second Generation 43 02-11-14 09:02 PM
Premium or Regular Gas 2thfxr RX - Third Generation 23 07-26-12 03:07 PM
reg gas or premium gas tripplej LX470 and LX450 15 12-17-11 01:19 AM
Regular Gas...harmful? nehal51086 IS - Second Generation 31 10-03-08 06:52 PM


Tags
2009, 2013, 350, 87, 93, cooper, difference, engine, fuel, gas, gs, gs350, gx460regular, knock, lexius, lexus, mini, octane, only, orpremium, premium, rating, regular, rough, running, rx, vehicles

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 03:58 PM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info