Recent Topics
Weber Q300 Grill Parts Help
by gathermewool
06/22/18 05:24 PM
I Had To Tell Somebody- Banquet
by Zee09
06/22/18 05:13 PM
Xfinity mobile cell service
by jay929
06/22/18 04:37 PM
Fuse "failure"
by dlundblad
06/22/18 04:32 PM
Do you Bluetooth your phone and car?
by ZZman
06/22/18 04:20 PM
Hastings air filters
by Spitter
06/22/18 04:18 PM
2011 Town and Country remote started itself.
by mrsilv04
06/22/18 04:06 PM
Vaughan Hammer and Superbar $10 Sam's
by hatt
06/22/18 04:03 PM
Denso Oil filter - outsourced / quality changed
by 92saturnsl2
06/22/18 02:37 PM
Bench Drill Press
by Propflux01
06/22/18 02:30 PM
IAT Sensor
by artbuc
06/22/18 02:26 PM
2013 Nissan Rogue, 5,100 miles, Supertech Conv
by TheOilWizard
06/22/18 01:46 PM
NC License Plates
by Zee09
06/22/18 01:31 PM
BITOG Hotline!
by Duffyjr
06/22/18 01:30 PM
Switching Additives: Flush/Rinse?
by Phishin
06/22/18 12:46 PM
increasing viscosity
by VQLT
06/22/18 12:31 PM
Who's up on their metallurgy?
by earlyre
06/22/18 11:56 AM
Replaced halogen headlight with LED
by gman2304
06/22/18 11:18 AM
Web Archive
by Duffyjr
06/22/18 10:25 AM
Sonoma This weekend!
by racin4ds
06/22/18 10:22 AM
Newest Members
Fatbrowndog0822, DRNJR, ZEK, Dudewayne, kmdz
65294 Registered Users
Who's Online
83 registered (andyd, 2015_PSD, 93cruiser, ammolab, Astro14, 77GrandPrix, 13 invisible), 1489 Guests and 53 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65294 Members
67 Forums
285789 Topics
4769538 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 4 1 2 3 4 >
Topic Options
#4621418 - 01/02/18 08:05 AM Premium Fuel in Cars That it is Recommended
Gebo Offline


Registered: 09/18/02
Posts: 2121
Loc: VA
With the price differential getting so great between regular unleaded and premium unleaded am I wasting money using premium? I never thought much about it up until it broke the 50 cent/gal differential.

I know I get better mileage and probably more power with the premium but this is more than an oil change expense twice a year. This could be $1000 a year to me.

I wish I KNEW why Toyota RECOMMENDS premium. I guess that is my real question. Why do they recommend it?
_________________________
'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K


Top
#4621421 - 01/02/18 08:11 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
CT8 Offline


Registered: 10/09/14
Posts: 10984
Loc: Idaho
Originally Posted By: Gebo
I wish I KNEW why Toyota RECOMMENDS premium. I guess that is my real question. Why do they recommend it?
Did you read the owners manual? Only you can decide to spend the extra $$$ for higher octane gas. Higher oczne fas allows moreadvance which equa;s mpre power and potentially more mpgs.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

Top
#4621425 - 01/02/18 08:19 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
Gebo Offline


Registered: 09/18/02
Posts: 2121
Loc: VA
Sure did. Read it several times over the years. I assume THOSE reasons would apply to most every vehicle on the road. I probably just had too much caffeine and the conspiracy theorist raised his ugly head.

Just finished watching "Engineering Explained" video talking about this very subject. Just got me thinking...
_________________________
'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K


Top
#4621427 - 01/02/18 08:22 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
SHOZ Offline


Registered: 06/28/03
Posts: 5749
Loc: Illinois
Around me the spread between grades is anywhere from $0.10 a gallon to $0.30 a gallon. Some places the premium is a $1 more than regular. I use premium exclusively on my Genesis Coupe due to a tune. It runs great on even the cheapest 92 octane there is, usually Pilot. But gets better gas mileage on 93 octane.
_________________________
2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual

Top
#4621430 - 01/02/18 08:25 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
Audios Offline


Registered: 11/19/11
Posts: 888
Loc: Lyndhurst NJ
When I was at BMW tech school, they said to prove that premium cars run better on super, do 5 tanks back to back of regular and average the economy out, then the same with premium for 5 tanks. My instructor guaranteed that BMWs would return 4-5 better mpg overall using what the car called for. Its a false economy, youre paying less up front but more often for it. One tank could get you another 60-75 miles each tank, so by the 4th one, youre a whole tank behind with regular.
_________________________
2002 VW Golf TDI-Mobil 1 5/40 TDT
2005 BMW M3 BMW Twin Power 10/60
1998 BMW M3/4/5 Fuchs 5/40
2007 Mercedes GL320 CDI Fuchs 5/40 GT Pro XTL

Top
#4621433 - 01/02/18 08:26 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
MCompact Offline


Registered: 07/21/02
Posts: 4113
Loc: KY
If the manual recommends premium fuel then that is what I use. Period. I'm not about to compromise performance for a few pennies a day.
_________________________
Mine:
2014 M235i
1999 Wrangler Sahara
1995 318ti Club Sport

Wife's:
2016 i3 REX
2009 Cooper Clubman

Son's
2009 328i

Buy what makes you smile...

Top
#4621443 - 01/02/18 08:34 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
Quattro Pete Offline


Registered: 10/30/02
Posts: 35872
Loc: Great Lakes
Originally Posted By: Gebo
I wish I KNEW why Toyota RECOMMENDS premium.

Which Toyota recommends premium?
_________________________
'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (FF)

Top
#4621455 - 01/02/18 08:43 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
skyactiv Offline


Registered: 03/02/13
Posts: 4398
Loc: The Midwest
I think there is one 2018 Toyota with a turbo engine? GM has already stated last year they wanna see a standard high octane fuel. It's simply a must for the gasoline combustion engine to survive in future vehicles because of the looming 2025 MPG requirement


Edited by skyactiv (01/02/18 08:44 AM)
Edit Reason: S.artphone typos
_________________________
Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Top
#4621460 - 01/02/18 08:50 AM Re: Premium Fuel in Cars That it is Recommended [Re: Quattro Pete]
michaelluscher Online   content


Registered: 10/07/12
Posts: 2421
Loc: Staten Island, NY
Originally Posted By: Quattro Pete
Originally Posted By: Gebo
I wish I KNEW why Toyota RECOMMENDS premium.

Which Toyota recommends premium?


Well, mine for one

It'll run on regular, but 1MZ/3MZ. and 2GR V6's are all high enough compression, that under the right conditions they ping like they're gonna fall apart, and retard timing accordingly

It "recommends" at least 91 or better

People question why a 12 year old Camry is getting 93 octane at the Costco

It's cheaper in the long run, and I can drive it the way I want to, without it sounding like a coffee can full of marbles

IIRC, compression is 10.8:1, which is well up there into liking premium
_________________________
'06 Toyota Camry SE V6 3MZ-FE 100k
'01 Mercury Villager Estate VG33E 52k
'06 Ford Taurus SE Vulcan 60k
'13 Chrysler 300 3.6 Pentastar 230k

Top
#4621467 - 01/02/18 08:55 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
Win Offline


Registered: 02/05/03
Posts: 4448
Loc: Arkansas
Recommended sounds like a suggestion that you can take it or leave it, as you wish. So, take it or leave it, as you wish.

The operating manuals for the two 6 cylinder Pontiacs in my sig recommend 89, without actually saying they recommend it - the manual says rated horsepower on 87, but max performance on 89. It is a noticeable difference for only two points, but, optional.

You might try 89 - it is a premium fuel relative to 87. If the engine requires 91 for rated horsepower, you won't get there, of course, but if the engine management can handle it without a lot of detonation, etc., it may be worthwhile. My V12 sounds like it's full of marbles at more than light throttle with less than 91, but my V8 Jaguar does OK on 89 for normal driving.
_________________________
09 Torrent 3.6 V6 M1 0/40
09 Solstice 2.4 I4 Fram 5/30
08 G8 3.6 V6 Fram 5/30
04 Xj8 4.2 V8 Hav 5/40
99 S-10 2.2 I4 RECOVERED
94 Xj12 6.0 V12

Top
#4621472 - 01/02/18 08:58 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
pbm Offline


Registered: 04/19/04
Posts: 7605
Loc: New York
I won't buy a car that 'requires' premium fuel.
It's one thing to pay 10 or 15 cents a gallon more but when it's 50 to 70 cents more your talking a lot of cash.
_________________________
'Journalism is Dead'

Top
#4621474 - 01/02/18 09:03 AM Re: Premium Fuel in Cars That it is Recommended [Re: Quattro Pete]
Gebo Offline


Registered: 09/18/02
Posts: 2121
Loc: VA
Originally Posted By: Quattro Pete
Originally Posted By: Gebo
I wish I KNEW why Toyota RECOMMENDS premium.

Which Toyota recommends premium?


My Lexi
_________________________
'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K


Top
#4621475 - 01/02/18 09:03 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
Rand Offline


Registered: 08/20/03
Posts: 12650
Loc: NE,Ohio
My jeep suggests 89, says it will run on 87... but it does pull alot of timing.

The other day I stopped at an exxon station to use my amex promo (10$ off 25$ purchase)

87 gas was 2.39 which was the price everywhere.. 89 was 2.99 and 92 was $3.59!!!!

Everywhere else(near me) the price difference is 25 to 30cents between grades

Buffalo had the right idea when I was there..

IIRC 89 was 10-15cents more than 87 93 was 30-40cents more than 87

I've tried using 87 but even when its cold out it runs goofy.
the zf-9 speed transmission likes to run at 1100-1400rpm then it will ping and make noise with any tap on the gas..
so I have to restrict downshifts to keep the rpms up more. and its pretty limp on going uphill at less than 2500rpm or so.

I just suck it up and go for 89 or 90 octane.
_________________________
2017 Jeep Cherokee Trailhawk V6

Top
#4621477 - 01/02/18 09:05 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
BobsArmory Offline


Registered: 03/28/10
Posts: 1320
Loc: Michigan
_________________________
Keeping the forces of evil at bay
2016 Chevy Malibu LT 1.5 Liter Turbo
2017 Chevy Equinox LT 2.4 Liter

Top
#4621482 - 01/02/18 09:07 AM Re: Premium Fuel in Cars That it is Recommended [Re: Gebo]
HoosierJeeper Offline


Registered: 11/23/16
Posts: 1276
Loc: WI
My LR3 recommends premium but I run regular, unless I'm in the mountains and working it hard.
_________________________
15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)

Top
Page 1 of 4 1 2 3 4 >