Stock in hand usually sent same day Mon-Fri if ordered by 3pm.

The one-year
H2flow, Motoflow or Thermoflow
Trial Period

The Bioflow Company offers a risk-free 90-day trial.  When you buy through this website, we offer a 12-month trial for personal use, not for business use.  For this you MUST conduct the trial as detailed here.

The 12-month trial applies only to the first unit purchased.

There are five simple steps
to the trial:

  1. Have an accurate record of your previous fuel use.
  2. Buy the product and fit it – use our simple fitting guide.
  3. Keep a record of fuel use and note differing usage patterns.
  4. When full efficiency is reached, compare your figures of fuel use.
  5. Work out the value of your guaranteed 10 years of savings!

If you’re not satisfied, return your privately-used H2flow, Motoflow or Thermoflow  within 12 months, with our Pivotal Health receipt, for a full refund of the purchase price. There’s no risk, because you know the full costs up-front.

Our unbeatable

14-day no-quibble money back when returned in original condition.

90-day trial period:
if your H2flow, Motoflow or Thermoflow  does not
suit, return it within this
time with your Pivotal Health receipt for a refund.  We will deduct 15% of the cost for restocking.

10-year warranty on materials and parts.

Lifetime guarantee on the magnetic properties.

Our promise of full service
at Pivotal Health for as long as you need it.


Telephone: (+44)
01909 483 568
daytime, evenings & weekend

Or Email:

Or use the navigation (left)
to our extensive help pages.

Content copyright, © Pivotal Systems 2006-2017  E&OE  Bioflow Distributor 37953
For queries or comments about this website only, contact: webmaster @

This website is produced and maintained by an Independent Distributor of Bioflow Ltd. (formerly Ecoflow plc).  It is not, nor has it any connection
with, the home page or other official website pages of Bioflow Ltd.  All claims on this site are made by the owner as an independent distributor.  
Bioflow Ltd. accepts no responsibility for the content of any such claims made in relation to Bioflow Ltd., its products and/or the business opportunity.

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Ltd.          was Ecoflow plc .

Pivotal Health

Hazel and David Croucher


Motoflow for Fleets

Frequently Asked Questions

(Motoflow for private use is here.)

How does Motoflow work?

Can Motoflow help all of our vehicles?

Which fuels does Motoflow work with?

Can our garage or workshop manager oversee Motoflow installations?

How often will we have to buy new Motoflow units?

What’s the worst thing we can do to our Motoflows?

How easy is a Motoflow system to fit?

How quickly will I get results?

How does Motoflow work?

We don’t know!  

Magnetic fuel conditioning has been in use for over 60 years, ever since it was (according to the story) accidentally discovered on the Griffon aero engine in 1944. There are plenty of empirical trials that show that it DOES work, but studying the behaviour of moving gases to find a transient, molecular-level phenomenon is tough science.  No-one has yet put money into the study, and most users are more concerned that it does work than why.

However, there have been some educated guesses by fuel technologists, materials scientists and engineers.  Most suggestions are along the lines that temporary ionisation makes the fuel more ‘energetic’, so that it burns more completely.  One learned suggestion for diesel fuel is that it is further refined by the magnetic conditioning.  But really, we won’t know for sure until some serious money is put into basic research.

So where’s the proof?  

Six governments have tested the Motoflow and found it to be effective.  The UK test was conducted by the DTI’s Warren Springs Environmental Laboratory in 1992.  They found an average 11% saving on a high-mileage staff Cavalier car and significant emissions reductions (indicating fuel saving) on a DTI-owned Volvo V10 flat-bed truck.  And countless competent motor engineers have since carefully tested and measured Motoflow’s effectiveness and proved it to their own satisfaction.  

Which is just what we invite you to do, too.

There’s a ‘quick and dirty’ demonstration that we use, on the LPG fuel in a throw-away cigarette lighter.  The ‘handler’ snaps on the lighter and holds it out so that the lighter’s body (the fuel container) is exposed and the flame vertical.  The ‘tester’ puts a hand over the flame to feel the heat – not too close; just enough to feel the warmth.  When this is comfortable, the ‘handler’ then moves the inside of a Motoflow up to touch the lighter’s body, beginning the test.  

After about three seconds, the ‘tester’ will feel the extra heat produced, usually pulling the hand back quickly and yelling ‘Ow!’  There is no change in either the appearance of the flame nor the amount of fuel being used to produce this additional heat.  This test works EVERY time, irrespective of whether the people performing the test believe it will work or not. Though the test will fail if the same lighter is used again within about 48 hours, as the fuel takes time to lose its conditioning.  

Why does it work?  Who knows?  But it does, and you and your company can benefit from the savings this can earn you on your annual fuel bill.  We rarely see under 5% savings, and for smaller vehicles over 10% is commonly found in careful tests.


Can Motoflow help all of our vehicles?

In a word – yes, that’s what we claim.  Unless they are electric or burn coal!  

In 22 years Bioflow has not yet found an engine design that didn’t give results, from small two-strokes, through engines in cars and vans to trucks and buses, tractors and excavators.  It also works on big marine diesels and jet engines. (Though airworthiness testers generally refuse to allow Motoflow on aircraft engines, as they do with anything not in the engine maker’s ‘modifications’ manual.)  The RAC has banned Motoflow from competition motocross bikes ‘in the interest of fair competition’.  Draw your own conclusion from that!  

The only case where we’ve found that a Motoflow won’t work well is when the vehicle runs very slowly or on exceptionally flat, smooth surfaces, such as with fork-lift trucks on factory floors, or if the engine is static, as in diesel generators.  For these you need the Thermoflow, which is effective when the fuel line isn’t vibrating sufficiently for a Motoflow to work.  Thermoflow is exactly equivalent to Motoflow M1, so your engine would need the same number of Thermoflows as a vibrating (i.e., road going) engine would need Motoflow M1s.

Which fuels does Motoflow work with?

Motoflow is suitable for and will work with petrol, diesel, biodiesel, alcohol, LPG and other petroleum-based gases of all grades.  We haven’t had a chance to test it on hydrogen yet! Motoflow and Thermoflow can be used with heavy fuel oil, but the cases must be removed and the units secured with bronze wire, because the fuel is at 80°C, which is outside the safety limit of the thermoplastics case.


Can our garage or workshop manager
oversee Motoflow installations?

Yes, of course.

Some initial trials and planning will be needed to set up each vehicle type in the fleet with the appropriate Motoflow set.  Then it’s a simple matter of ordering the units for each new vehicle (or, to be accurate, each new engine type), or transferring from outgoing vehicles.

There are three elements to management of your Motoflow fleet system:

Pivotal can help your staff set up and manage each part – this is a free service.


How often will we have to buy new Motoflow units?

Unless you are expanding the fleet or upgrading to more powerful engines, you will rarely need to purchase fresh stock.  Every Motoflow unit is guaranteed for ten years, but the original 1991 units are now 22 years old and still working fine, so you can expect your Motoflows to exceed the guarantee!  You are unlikely to need ANY replacements except in these circumstances:

Upgrading to a vehicle with a larger engine may need one or more extra units; conversely, a smaller-engined replacement vehicle may leave you with a spare Motoflow for later.


What’s the worst thing we can do to our Motoflow?

You could of course, have a garage or engine fire, and that is at least covered by insurance.  But the commonest way to get rid of a Motoflow system, causing some distress in the accounts department, is to leave your Motoflows on your vehicles when they’re sold on or go back to the leasing company.  That will give you a bill for buying a replacement set for the new vehicle.  

We suggest that you attach a note to the Registration Document when you fit the system, reminding the service manager to have the Motoflows removed before disposal, and returned to stores.  Motoflow units are secured to a fuel line with commonplace nylon tie-wraps, which will probably be a stores item anyway.


How easy is a Motoflow system to fit?

The simple answer is: very easy! Each unit tie-wraps onto a fuel line close to the engine in a few seconds.

As always, though, there’s more to it than that.  Fitting is the last of three stages, and occasionally one of them is troublesome. The stages are:

  1. Decide how many units are required for the engine and whether it should be the M1, the M2 or a combination.  We at Pivotal will help your staff with this, but it’s better to over-specify than under, especially if it’s for a vehicle taking part in the 90-day trial.  Most company cars and small vans will need one unit, most small panel vans and small trucks two, and maybe up to six for, say, a 12-litre truck engine; eight if it does mega-miles and the extra expense will be cost-effective.
  2. Decide where each unit is to go.  On older vehicles this is usually very simple, but today’s crowded and covered engine bays mean that it’s often necessary to get a mechanic familiar with the model to identify the optimum position and advise on access.  Your company’s car or truck dealer will generally do this without charge.  On larger or unusual vehicles, you may also need our Bioflow Distributor Network’s advice – just ask!
  3. Fit the Motoflows. Most modern vehicles will need our ‘hot fit’ method, to let the engine management system know that it’s using a Motoflow system.  It’s simple, following our guide.  Every report we’ve had at Pivotal in ten years that a Motoflow isn’t working, was caused either by neglecting to hot fit or by fitting the units to the wrong pipe.  Once that was fixed, the system gave good results.


How quickly will I get results?

It always takes a while before a Motoflow system is working at full efficiency. Typically, a small petrol or common-rail diesel engine will take about 1000 miles to condition; other smaller diesels up to 3000 miles; and large truck engines possibly up to 12,000 miles.  Of course, with such vehicles this may well only take weeks rather than months.

Please note that we won’t sell you Motoflow under the 90-day money-back trial unless you already know your current average fuel consumption – not the maker’s figure, nor the results from when you checked when the vehicle was new!  We know that many operators now keep meticulous records for each vehicle, and that’s fine.  But ask for our simple calculator if you don’t already keep regular figures.  As you’d expect, we want to be sure that the trial is fair just as much as you do, so recent accurate fuel performance figures are essential before the trial begins.  It’s also worth noting that high-mileage engines are likely to have an increase in exhaust emissions and fuel consumed for a while after fitting, as the action of the Motoflow cleans the cylinder head from deposits.  The Government Cavalier in the official 1992 test had this reaction: it had clocked up over 100,000 miles. Decoking is back!

You’ll then need to monitor the improving fuel consumption until you get results.  It can take a little while for the Motoflow system to magnetically ‘condition’ the fuel lines, before you get full performance.  In fact, it’s not unknown for there to be no results until suddenly fuel consumption improves by 8% or so!  Usually, though, there’s a dead period, then a gradual improvement.  

Once the new, lower fuel consumption is reached, you can calculate the expected savings over the ten-year life of the Motoflow’s guarantee and find out how much money, fuel and CO2 you’re likely to save.  Then pat yourself on the back, because several thousand pounds saved over ten years is usual even on small vehicles, if they’re in frequent use, and tens of thousands on a big truck!