08-25-2021, 05:47 PM
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#16
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Quote:
Originally Posted by BorotHex
I run 91, stock tires at 35 psig instead of 32, and get 22+ mixed driving. I do not sit around idling ever though.
I deleted photos of my dash showing 23+ over the entire tank, but it’s true. I do not drive slow, but for whatever reason I always get better than everyone else. I was a hypermiler when I was a teenager so maybe it stuck with me.
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It has nothing to do with octane. It's your driving style or may be where you drive is at an higher elevation.
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08-25-2021, 06:08 PM
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#17
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Join Date: Oct 2016
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my Vtech kicks in way harder with 91
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08-25-2021, 06:16 PM
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#18
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Join Date: Sep 2020
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Quote:
Originally Posted by 2021nightshade4x4
After so many tanks, will the vehicle “attempt” to advance timing a little further?
Curious if there is any benefit to doing this or zero reason to try it.
Sent from my iPhone using Tapatalk
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Only engines with higher compression ratios need higher octane gas; the 4Runner is not one of those. Thus there will be no difference in power, or fuel economy.
However, it is more important to use Top Tier Gas as recommended by Toyota and shown in the latest owners manuals ( TOP TIER™ Gasoline Brands). Top tier gas has more cleaners in it than fuel that is not top tier, thus your engine will be cleaner, on the inside.
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08-25-2021, 06:22 PM
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#19
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Quote:
Originally Posted by spartacus
It has nothing to do with octane. It's your driving style or may be where you drive is at an higher elevation.
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I did not say it was because of octane.
Thanks!
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08-25-2021, 07:06 PM
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#20
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2014 4Runner Limited Barcelona Red, RCI gas tank skid plate, 275/70/17 BFG KO2 all terrains on SR5 wheels for off road use stock 20s for highway
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08-25-2021, 07:42 PM
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#21
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Quote:
Originally Posted by fkheath
Only engines with higher compression ratios need higher octane gas; the 4Runner is not one of those. Thus there will be no difference in power, or fuel economy.
However, it is more important to use Top Tier Gas as recommended by Toyota and shown in the latest owners manuals ( TOP TIER™ Gasoline Brands). Top tier gas has more cleaners in it than fuel that is not top tier, thus your engine will be cleaner, on the inside. |
What is the compression? 8:1?
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2018 TRD Off Road Premium. Eibach Pro, JBA, Toyo's, TRD cai.
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08-25-2021, 07:46 PM
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#22
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You have less money for beer
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2020 4Runner SR5 Premium 4x4
Barcelona Red, Graphite/Grey
Sunroof
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08-25-2021, 07:50 PM
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#23
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It makes your wallet lighter or your bank account smaller, not much else.
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2014 Trail Premium w/ KDSS. OME 3" Lift w/ medium springs, Greenlane Diff Drop, SPC UCA, LT285/70R17 Falken Wildpeak AT3W E Load, Level 8 MK6 17" x 8, 0 offset, Element by RA Automotive Engine Skid, Prinsu Full Length No Drill Rack, ICS Dash mount.
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08-25-2021, 08:10 PM
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#24
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Quote:
Originally Posted by Charlievee
What is the compression? 8:1?
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Dual vvti 10.4.:1
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08-25-2021, 08:44 PM
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#25
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I did about 7,500 miles over 6 months with 91 vs 87... no measurable MPG change except for the winter/summer blend.
18.8 average before 91 ~ 6 months (watching eco light like a hawk)
18.7 on 91
18.7 post 91 ~ 6 months (added TRD CAI)
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Demello Hybrid Bolt On Sliders | Toyo Open Country AT III LT285/70R17 C | Ironman 4x4 Foam Cell Pro Stage 2 | Durobumps | Rago Molle Panels | Leather steering wheel cover | RCI Full Skids (Aluminum) | Drawer less drawer system and sleeping platform. | TRD CAI | RAV4 Sideview Mirrors: 87961-42D20 & 87931-42D50 | Blackvue DR650S-2CH | Cobra 75 WX ST with 4’ Firestik + Magnet Roof Top Mount | MXT275 Midland GMRS radio | 3M Crystalline: Front CR70, A-B CR50, B-Aft CR40 | RRW Leather Seat Covers w/Besond Seat Heaters| 3DMax Floor Mats and Rear Husky Liner | former LT265/70R17 C Duratracs
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08-25-2021, 08:52 PM
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#26
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Quote:
Originally Posted by RichinRidgewood
You have less money for beer
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This equates to 4 beers every tank.
I’ll stick with 87
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08-25-2021, 09:41 PM
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#27
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At 87, I was getting 14.7mpg, after switching to Premium, I have gained 80hp and get 40mpg!
Just kidding, it doesn't make an f'ing difference. It's a 4Runner, it's horrible on gas and slow, what did you think you were buying?
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08-25-2021, 09:50 PM
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#28
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i skip straight to jet fuel.......
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2016 trail 4runner, twin locked on 34's.
Can read more of my build here (2 parts):
https://www.lasfit.com/blogs/news/ho...ad-build-part1
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08-25-2021, 10:50 PM
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#29
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I used 91 on a Honda Odyssey once thinking it would be better for towing and it it threw up an oxygen sensor code. Never did that again and the code never reappeared.
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08-26-2021, 02:25 AM
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#30
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Quote:
Originally Posted by fkheath
Only engines with higher compression ratios need higher octane gas; the 4Runner is not one of those. Thus there will be no difference in power, or fuel economy.
However, it is more important to use Top Tier Gas as recommended by Toyota and shown in the latest owners manuals ( TOP TIER Gasoline Brands). Top tier gas has more cleaners in it than fuel that is not top tier, thus your engine will be cleaner, on the inside. |
I see engines with 10.5 require premium fuel, some with 9.6 require mid, so how is the 1GR able to do 10.4:1 with just regular?
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