Shell's nitrogen enriched gas vs Chevron Techron??

Discussion in 'Fuel Economy' started by taylormah, Mar 12, 2009.

  1. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    I'm sticking with my Texaco gas. It gives me the best mileage. Not because of what's in it, but what's NOT in it - ethanol! That gives me 4-5% better mileage, depending on how you calculate from the data.

    Any additive Shell puts in would have to overcome that, plus another 2% for their higher prices. I'm highly skeptical it'll achieve that level of improvement.
  2. cpeter38

    cpeter38 Right Lane Dweller

    Is there a thread that lists the non-ethanol stations by state?

    I am trying to find a non-ethanol station in the Detroit Metro area.

    Unfortunately, almost every station I have gone to does not sticker the pump. The few that do, specify 10% ethanol. When I go into the station and ask, I have learned that I have to ask them to show me the paperwork because the people running the station do not know. :mad::mad: Unfortunately, every verbal claim of no-ethanol has not been supported by their paperwork :mad::mad:
  3. Mark Wynn

    Mark Wynn New Member

    All I know is, Nissan dealer said I needed a $300 cleaning of intake system for sticky accelerator coming off idle. Started putting Shell premium with nitrogen in my 2000 Frontier 4x4, 6 cylinder. (It will run on 89 E-10 gets better mileage with 91 premium and comes close in cost/mpg. Owner's manual recommends premium.) Sticky accelerator off idle went away. I will continue to run a tank of Shell premium with nitrogen when prices allow. However, am concerned because not all Shell stations in Nebraska advertise the nitrogen-enriched fuel. Wonder if it's going away?
  4. capnbass91

    capnbass91 New Member

    That can't be true, for by law all grades of gasoline must have the same amount of detergent in them.
  5. capnbass91

    capnbass91 New Member

    From my searching on the web, it seems that that stuff is the best around. My automotive teacher (who has been working in the industry for over 40 years) spoke highly of the stuff. It's not too expensive, about $20 a can and it lasts a long time. Supposed to use it about every 30,000 miles, really powerful cleaner.
  6. herm

    herm Well-Known Member

    If your car needs premium, mix a bit of E85 with regular gasoline.. you will get a big octane boost at low cost.. start at 10%
  7. herm

    herm Well-Known Member

    I suspect some of the struggling gas stations are not changing the additive cartridges inside the pumps in a prompt fashion. At least in S Florida, all the gasoline brands come out of the same pipe at Port Canaveral.. I only use Chevron brand, at corporate owned stations.
  8. herm

    herm Well-Known Member

    Best way to use the stuff is the hot soak method (at least with FI engines), its best not to use it before a long trip but during everyday driving.. the fuel remaining in the hot injector will soak the residue and soften it while the engine rests and cools down.
  9. rfruth

    rfruth Well-Known Member

    Recently someone (not here) said a couple gallons of additives were added to each truck tanker (they made no mention of how it gets blended) first iv'e heard of additive cartridges (not that means much) do they swap out the additive cartridges at the same time the fuel filter (in the pump) is changed ?
  10. TimRogers

    TimRogers Member

    I know this is an old thread but there's nothing wrong with dragging it back into the light...

    I believe that the law states that all grades must have a minimum amount of detergent.
    Once you have met the minimum amount you can add more to your heart's content.
    If you have a certain amount higher than the minimum amount, it is Top Tier rated.
  11. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Tim:

    Did you see the valves on our recent Dual Fuel charger drive? Shell V-Power Plus and its additive pkg. buried the minimum by law detergent requirement of any number of competitive name brand Premium fuels.

    Shell V-Power NiTRO+ 10,000 mile Dual Fuel Challenge

    I drove this vehicle from new with one side of the engine being fueled by Shell V-Power NiTRO+ and the other side being filled with numerous competitors Premium. The results speak for themselves.

    Dual Fuel Charger Tanks

    Dual Fuel Charger Intakes

    Some of the controls.​

    I was required to monitor intake pressures of both rails throughout the test and both were +/- 1 psi. I could have adjusted them if they dropped out of spec but they were solid from the first mile in San Antonio to the last in Los Angeles after a 10,000 mile drive route. The route was not designed to favor any particular OEM fuel, I was only required to drive to and through particular cities on a Tour over the course of 4 weeks.

    The results as we opened up the intakes and scoped them in front of media at Jay Leno’s Garage this past summer.

    Shell V-Power NiTRO+ Competitive Comparison

    Shell V-Power NiTRO+ intake(s).

    Competitive Brand Premium Fuel intake(s).​

    I am under an NDA as to which stations I chose to refuel at but every major brands Premium was used including many Top Tier rated ones. Shell did not require me to choose a particular station of their choosing, I chose whatever was nearby to the Shell tank refuel.

    The document trail was pretty intense with miles, station address, time, date, amounts, prices, conditions, and I even recorded fuel efficiency of both sides in the same car which should have been the same. It was not.

    While efficiency was not a parameter they wanted, the more expensive Shell V-Power+ tank consumed less fuel and overall saved $s at the pump across the total miles. It was a surprising result.

  12. TimRogers

    TimRogers Member

    Wayne, that is impressive. I may be a convert...
  13. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    Useful to know, as long as it's a port-injected engine. DI and the fuel will have no effect on the valves because it's injected after the valves.
  14. ALS

    ALS Super Moderator Staff Member

    Filled the Volvo up with Shell Premium and threw in a bottle of Techron for good measure. I took a ride yesterday for a little over two hours to get everything nice and hot since the car spends most of its life in the garage.

    First twenty five miles it was pretty lethargic and by two hundred miles it was was running like a bear. :D

    Since I usually fill with the cheapest 91-93 I can find and the Shell station about a half mile away was the cheapest, I filled her up with 18.5 gallons. :p

    This is the best it has run in years.
  15. Mendel Leisk

    Mendel Leisk 2010 Prius (CAN Touring) Staff Member

    Wayne, I wonder what the results would have been if the alternative gasoline had been Chevron only, per the thread title. My reasons are chauvinistic, basically because I've mostly used Chevron, for decades.

    The main reason I stick with Chevron (in case an of the gas selling companies are listening, lol): FREE air.
  16. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi Mendel:

    Here in the U.S., Shell's V-Power NiTRO+ uses the most advanced and most volume of their new proprietary formulation detergent of any OEM. I am trying to remember the spec but I think it is 31 mg/l whereas everyone else was in the 10 to 15 mg/l area.

    The cool thing is the Shell Mid-grade and Shell Regular has the same advanced detergent package but only about half the amount by volume.

    In California, most Shell's as do most stations have free air. :)

    There is something different about Canada. I think all grades have the same super high concentration. Do not hold me to that statement but there is something about Canada that is better than us wrt the Shell V-Power NiTRO+.


  17. Mendel Leisk

    Mendel Leisk 2010 Prius (CAN Touring) Staff Member

    Thanks for the info!

    I tried reading up on Chevron Canada's website, difficult to tell if their additives vary by octane grade. I seem to recall that. I suspect they're trying to upsell drivers on their higher octane gas, but are soft pedalling it now, due to consumer watchdogs bringing it to light. CBC MarketPlace for one did a program on gas stations pushing higher octane.

    I just plug in Chevron regular, fwiw.
  18. priusCpilot

    priusCpilot George

    Great testing and info Wayne! I love it!!!

    I use Shell mostly but with the this new Costco station I started switching.

    Costco is a Top Tier Station. They show on top the pump a picture just like Wayne's which show a carbon in crusted valve and a clean one. They say 3x times EPA detergents? I wounder who there anonymous supplier is?

    I checked Shells site. Its premium contains "several times higher then EPA requirements?" How much is several? 3x or more??

    I'm going with Costco for now.

    Wayne you used 91 in a car that takes 87 and your MPG went up? I have been wondering about that my self?
  19. some_other_dave

    some_other_dave Well-Known Member

    According to state law, all gas stations must supply free air to their customers. Some stations are real sticklers about that last provision, while others are not. Even at stations where there is a pay-for-air station, there will be an override or a code you can enter to turn them on without paying.

    Though not all station operators appear to have heard of this law...

  20. schuylkill

    schuylkill Well-Known Member

    Is it true that Chevron owns Texaco? Are the additives the same if so? Does Shell 87 still contain an additive equivalent to Techron? I thought that Techron was a Shell product, what is their bottled cleaner?

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