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Improving fuel economy?? Any hints?

Discussion in '1st Gen Tundras (2000-2006)' started by 03TundraWA, Feb 12, 2020.

  1. Feb 23, 2020 at 1:46 PM
    #121
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    @bmf4069 you have lots of work to do when you leave your Corner of Shame.
     
  2. Feb 23, 2020 at 6:17 PM
    #122
    Stumpjumper

    Stumpjumper New Member

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    Carbon build up in outboards was around long before ethanol in fuels. Carbon comes with mixing gas and oils. This is why they make carbon removers specifically for outboards. The biggest problem in outboards was fuel lines not designed to handle ethanol and fuel sitting for long periods of time. Outboards have rubber fuel lines whereas fuels have mostly metal.
     
  3. Feb 23, 2020 at 6:34 PM
    #123
    02goes

    02goes New Member

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    Wrong, and flat out wrong at that. They have always used carbon removers for outboards and any combustion engine, especially for vehicles that we drive. And that was way before the outboards. For vehicles, one of the first and simplest concoction for removing carbon build up was plain ole tap water. With the engine being kept running, water was slowly poured into the carbs to remove carbon build up back in the day before you were a thought in Gods mind. Marvel Mystery oil and Risoline was one of the first popular product to prevent carbon build up. Lucas is also still used today.

    Also, your obviously not aware of the rubber tubing being upgraded for ethanol fuels. And this upgrade continues as the ethanol content increases. Thus, your statement

    "outboards was fuel lines not designed to handle ethanol and fuel sitting for long periods of time. Outboards have rubber fuel lines whereas fuels have mostly metal."

    is false with exception to "Outboards have rubber fuel lines.", and they do for good reason.

    Metal lines running underneath a vehicle is less prone to puncture and deteriorate as rubber has a tendency to do. Can run ethanol rubber lines w/o that worry from tank to motor, and they are easy to install in any boat using outboards.

    Metal rail lines exist for high pressurized fuel to accommodate the injectors requirement to operate/function to designed optimal level. And running aluminum lines are cheaper than running braided rubber lines that can accommodate the higher pressure. Outboard fuel rails are metal for same reason.

    Non ethanol gas also absorbs water, but not at the rate ethanol gas does. That's why Sta-bil has been around way before the ethanol additive was discovered.

    Run your ethanol fuel, I don't care. And I'll stick with what I know is best for my gas powered engines.
     
    Last edited: Feb 23, 2020
  4. Feb 23, 2020 at 6:44 PM
    #124
    Hooptytrix

    Hooptytrix Squeaky Chicken

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    Ok what I miss, feels a little hot in here
     
  5. Feb 23, 2020 at 8:20 PM
    #125
    Stumpjumper

    Stumpjumper New Member

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    Notice I did not mention what years. Yes newer fuel lines are designed to handle ethanol. There are still a lot of older outboards out there. I would hope by now that most have updated the fuel lines.
     
  6. Feb 24, 2020 at 7:33 AM
    #126
    bleach

    bleach Resident WISEGUY

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    [​IMG]
     
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  7. Feb 24, 2020 at 8:11 PM
    #127
    02goes

    02goes New Member

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    Glad you know about rubber fuel lines from tank to outboard motors being up dated. Sounded like you were ignorant to that earlier, or just wanted to come on to 1st gen trks to blindly argue with people that you think don't know sht. People like that make others to not participate. That's no good here.

    The real reason for ethanol compatible motors vs upcoming none hasn't been discussed.
    It has something to do with internal parts that your not aware of. You said nothing about it yet, but will say you knew about it and will say so shortly is predictable. Internal fuel rubber components not being compatible to strength of ethanol additive is when that gas motor is done. Unless it's torn apart and upgraded to ethanol compliant part replacement.

    Flex Fuel equipped motors/components are compliant to current ethanol to fuel ratio and up to 85 percent ethanol content and 15 % fuel mixture.

    You are in a 1st gen conversation, and w/o significant knowledgeable input...Bye.
    Look it up and all will become clear, I will help you understand if you need help.
     
    Last edited: Feb 24, 2020
  8. Feb 25, 2020 at 4:44 AM
    #128
    mobicola

    mobicola New Member

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    I dont know if anything would help the V8 Tundra much on fuel mileage. I have a 17 year old Camry four cylinder that is as reliable as a claw hammer. Nothing fancy just works each and every time I need it. Piling the miles on the Camry for a daily driver and use the Tundra maybe one day a week or for a toy hauler etc.
     
  9. Feb 25, 2020 at 5:00 AM
    #129
    9am53

    9am53 New Member

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    I think after all is said and done thats the best thing we can do to save some gas money. I only need my truck to do truck stuff maybe 5-10% of the time at most
     
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  10. Feb 26, 2020 at 6:05 PM
    #130
    zombie

    zombie Master at Something

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    Exactly :thumbsup:
     
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  11. Feb 26, 2020 at 6:53 PM
    #131
    Sas

    Sas Humor is everywhere

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    Thin out the gas with some water.
     
  12. Feb 26, 2020 at 7:00 PM
    #132
    bleach

    bleach Resident WISEGUY

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    Screen Shot 2020-02-26 at 6.59.39 PM.jpg
     
  13. Feb 27, 2020 at 6:53 PM
    #133
    tmac58star

    tmac58star New Member

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    Run on aviator fuel if you can get it...avgas they call it.
     
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  14. Feb 27, 2020 at 10:20 PM
    #134
    artsr2002

    artsr2002 2005 Tundra DC SR5

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    Put 15 inch wheels and tires on the front and 35 inch wheels and tires in the back for that always going downhill stance. Trucks going downhill always use less gas. Scientific internet fact. LOL
     
  15. Jan 14, 2021 at 12:39 AM
    #135
    assassin10000

    assassin10000 New Member

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    Northern CA
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    Remote start alarm Removed keyless entry piezo Qi phone charger & dash mount Subaru underseat subwoofer Hopkins Easylift Steering wheel audio controls No-tenna mod 3/4 adhesive anti-rattle shim D/S door
    So, got a tonneau cover the other day and in the interest of 'Science!' went and did a few checks with my torque pro & a bt dongle.

    Same freeway sections in both directions and averaged results. Started with a full tank both times and from the same station. Same cool night temps and same tires/pressure.


    MAF G/s / Engine Load % and Est. MPG

    Without cover:
    64mph
    34.9/36.4 18.6

    70mph
    42.1/40.4 16.8

    75mph
    52.2/46.8 14.6


    With cover:
    64mph
    33.5/35.0 19.3

    70mph
    39.9/38.3 17.6

    75mph
    48.2/43.0 15.7


    The est. MPG may be off a bit but real world calculation at the pump was fairly close to what I actually get (67mph est mpg was 18.3 but I actually got 18.4 mpg).

    Food for thought.
     
  16. Jan 16, 2021 at 9:18 PM
    #136
    HBTundra

    HBTundra New Member

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    Sorry to keep beating a dead horse on this topic. I just got a 06 DC 2wd w/ really low mileage of 58K . . . it was my neighbors garage queen. It sat quite a bit as he has a company car. When I 1st got it a couple months ago I did all the basic maint. stuff I could do. The 1st 2 tanks of gas I ran 91octane w/Lucas Oil upper cylinder lubricant per their ratio. Truck bogged, felt like the E-brake was on, ran like a top, but just gutless. Then next couple tanks of gas I went with 89 and the Lucas and it seemed to wake it up a little. Last 2 tanks I've ran 87 w/ Lucas and it 'SEEMS' to like that much better. Now, this could all just be in my head as I feel like I'm still learning the 'power curve' of the truck. Coming off the 03 V6 AC I had, it's a totally different animal. My mileage seems to have improved this tank, and maybe the octane thing had nothing to do with it at all, and it was just me driving the truck wrong. Might try a tank w/o the Lucas next, but that stuff has always helped every vehicle / boat I have ever had . . . even 2-stroke outboards.
     
  17. Jan 20, 2021 at 5:31 PM
    #137
    Skey44

    Skey44 GreenvilleOverland

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    Lift, tires, skids, sliders, fridge, camper
    Changed my dirty air filter. Seeing at least 1mpg per trip according to computer.
     
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  18. Jan 21, 2021 at 5:47 AM
    #138
    KNABORES

    KNABORES New-ish Member

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    The Lucas could have a cleaning affect on the injectors and fuel system perhaps?
     
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  19. Jan 21, 2021 at 6:05 AM
    #139
    FirstGenVol

    FirstGenVol Allergic to Darkness....

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    Too many
    I think the secret sauce for these trucks is two-fold:

    1. make sure the truck is in top mechanical shape. Plugs, filter, MAF, throttle body, etc
    2. stay off the pedal!
    I mentioned before that I'm running a 32.8" tire, steel bumper, skid plates, sliders, camper shell and lots of gear. Even with 2 adults, 2 big dogs, and a bed full of camping gear, I can get over 17mpg while cruising around 65-70mph. One tank on my last road trip I got close to 18 I think. Now my city MPG is terrible but there isn't much I can do about that.
     
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  20. Jan 21, 2021 at 6:18 AM
    #140
    Badknees

    Badknees New Member

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    Be careful using Seafoam! I used it on a 2002 4runner and killed the cat-converter. Too much *&#@ to be processed at once.
     
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  21. Jan 21, 2021 at 6:25 AM
    #141
    Tundra2

    Tundra2 Zoinked

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    By my last math mathematics (We all know I'm from KY so y'all know I can't count for shit) I'm getting 14.82 on a good day. staying off the pedal gets me slightly more...

    Granted , I have more weight to push compared to my displacement versus the rest of you all here. Part of why I've kept my pie hole shut on this thread so long, but I have indulged this mornin... :drunk:

    26.4 Gallon tank, and last fill up was 19.5 gallons at 289 miles... Gas guage was showing just under a 1/4 tank.
     
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  22. Jan 21, 2021 at 6:35 AM
    #142
    Johnsonman

    Johnsonman New Member

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    Airing up from 36 to 40 gained me a huge .1mpg, haha. Ride is affected ever so slightly, but it is OK.
     
  23. Jan 21, 2021 at 7:06 AM
    #143
    Schcoman

    Schcoman From behind the Redwood Curtain

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    None
    It does. It's both an injector cleaner and lubricant. I've used it for years and continue to enjoy the performance benefits.
     
  24. Jan 21, 2021 at 10:36 AM
    #144
    HBTundra

    HBTundra New Member

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    Some will say it's snake oil, and I don't want to go down that rabbit hole. Will it increase HP?...nope, will it increase MPG?... maybe a little for some, probably not for most others. I've researched/ read/watched as much info on the stuff as I could stand. My conclusion is this, when they took the MTBE out of the gas years ago and replaced it with 10+% ethanol, it wrecked HAVOC on marine engines. Phase separation, rotting of rubber fuel lines, seals, gaskets, fiberglass gas tanks, the list goes on. It's still probably the leading cause of marine engine failures today. Modern day 4-stroke outboards are getting closer and closer to automobile engine technology every year, computer driven fuel injection is 'standard' on almost all marine outboards. The 'now-missing' MTBE had a 'cleansing, and lubricating' quality to it, where as ethanol has more of a 'corrosive' quality . . . it absorbs water which is no bueno in any fuel system. Ethanol blended gas vs MTBE gas loses octane points at a much faster rate (not a big deal in cars because we're turning it over faster, but in boats it often sits for long periods)
    Lucas Upper Cylinder Lubricant can't 'replace' MTBE, but I feel it does a damn good job of filling in for it by cleaning and lubricating my entire fuel system, which in turns saves me from premature fuel system related failures. For me it's cheap insurance and good piece of mind. YMMV
     
  25. Jan 21, 2021 at 2:30 PM
    #145
    wandering_boy

    wandering_boy just lettin life bend me over

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    I know this sounds super basic but raising my tire pressure to 40 gave me 1-1.5 mpg on a recent road trip another great investment is the Dirty Deeds Industries 12 hole injectors, you can get them in the stock 270 cc but with 12 holes instead of 4 it helps aerosolize the fuel better and the only cost $375 and gave me back 1.5- 2 mpg. and i could definitely feel a little more power when flat out. With both of those tricks I got 20mpg(average for the hole tank) for the first time since I bought the thing.

    http://dirtydeedsindustries.com/product/fuel-injectors/
     
    Last edited: Jan 21, 2021 at 2:53 PM
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  26. Jan 21, 2021 at 2:52 PM
    #146
    P-Factor

    P-Factor Enigma

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    I know this will most likely start a :crapstorm:storm but I find Lucas Injector cleaner to be great stuff for multiple reasons including increasing gas mileage.
    [​IMG]
     
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  27. Jan 21, 2021 at 2:53 PM
    #147
    toyoboyo

    toyoboyo New Member

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    LOL. The MPG posts have me laughing a bit.. Reminds me of ricer math.

    Intake 10hp
    headers 15hp
    catback 12hp
    throttle body 5 hp
    stickers 20hp

    Add it together and you're spanking Ferrari's.


    So if we air up our tires, seafoam the truck, add injector cleaner, get 12 hole injectors, pump 91, change spark plugs, clean air fliter, change diff fluid, and not run the AC we can achieve 100mpg.

    I'm gonna do this and moon every prius and tesla as I drive by them
     
  28. Jan 21, 2021 at 3:15 PM
    #148
    wandering_boy

    wandering_boy just lettin life bend me over

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    :yes::rofl::duh:
     
  29. Jan 21, 2021 at 3:52 PM
    #149
    Darkness

    Darkness Allergic to white

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    It's really dark
    Don't forget leave to the tailgate down. (I know, Mythbusters busted that one but it sends a message)

    Honestly @FirstGenVol hit the nail on the head. Get your truck in tip top shape, then learn how to drive it. Those two things get better results than any mix of mods.

    Also, plan how you drive. If you reduce the distance you drive by doing errands on one day you save the mileage of going from home to store to home repeatedly. Do shopping on the way home from work. If you stop at a fast food, park and walk in rather than idling away half a gallon in the drive thru. You will save more gas than you'd imagine.

    Stop using your brakes so much. Stop using the skinny pedal when the light ahead is red, yellow, or stale green. Learn to accept coasting. If you coast up to the light and it turns green while you are rolling, you just used less gas than you would have if you came to a stop.
     
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  30. Jan 21, 2021 at 4:42 PM
    #150
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    ‘Moon’. :rofl:
     

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