These are my results, for the Mileage Test, for Chris Fix.
Chris Fix is a Youtube presenter, with his own channel... He does a lot of car repair videos. His videos are very good, amongst the best that I have seen out there. So, Check out Chris Fix on Youtube when you have a chance! You will NOT be disappointed! I encourage you to SUBSCRIBE to Chris Fix on Youtube.
Alright, let's get started...
We are testing MAXX Fuel Supplement:
Lots of interesting claims on that bottle. Sounds like a miracle, doesn't it??? It should. It costs $20 a bottle. We'll come back to that later....
Now, Particulars on the car I drove, for this test:
2008 Dodge Challenger SRT8
First Edition
6.1 Liter Hemi V8, Premium Recommended
(Premium Gas from Mobil was used entirely for this test)
70,000 miles on the car.
Mobil One 0w40 full synthetic motor oil, Factory Recommended fill, changed 900 miles ago.
For the record, the car is running fantastic right now. Starts, plenty of power, runs strong, no codes, no MIL lamps, nothing.
Just for a laugh, that is my average MPG right now. Probably hasn't been reset in at least a year. This car loves gas. This is not a mileage machine at all. My Escalade gets roughly the same mileage. To be honest, my C5 Corvette routinely got 25 mpg. I had several Cadillac Eldorado's, those routinely were in the 23 to 25 mpg range. So, if you are looking for mileage, this is not the car for you.
Also, my driving is plenty spirited. Maybe I should tone it down on the burnouts, and the launches when the light turns green......
That's just a point of reference, for what we will see during this test.
Methodology for this test:
Okay, the test:
1. Fill up the tank with Mobil Premium Unleaded.
2. Drive a 75 mile loop, mostly freeway, with some city.
3. Return to the same Mobil, make observations.
4. Add 2 ounces of MAXX fuel treatment. Now, the bottle says 1 ounce, for 30 gallons, but that seems like, such a microscopic concentration... I'm adding 2 ounces. Leave your complaints in the comments, I will ignore them completely.
5. Refill tank. Now, whatever THIS fill requires, is what we BURNED running loop 1, correct? Correct! Also, I refilled at the exact same pump, so, any question of "diffferences in gas" should be discarded. Also, I did this all on the same morning, so, temperature, air pressure, weather, or other extraneous factors should be minimized.
6. Drive the identical loop again.
7. Return to the same Mobil Station. Make observations. Refill tank. Again, what it takes, to refill the tank, should be what we burned on Loop 2.
8. Analyze results.
Alright, let's get started.
Here we are (picture above), starting out, at Mobil, full tank, all counters in vehicle are reset to zero, as you see.... and off we go!
And, yes, In June, in Wisconsin, it's 62, cloudy, drizzling..... I'm not sure why anyone lives here, to be honest....
Attempting to cruise on the freeway... I thought traffic would be light, this morning, but the world is full of people who set their alarm, got up early filled up their crappy minivan with whatever, and got out on the highway. The gas pedal must be nearly impossible to find in those things.... Can't even maintain 65... Sigh. I don't have the kind of "pull" in my commmunity, where I can ask for 35 miles of freeway to be shut down, so, I guess we get what we get....
Okay, Loop One complete.... What do we see?
74.1 miles, 21.9 mpg, is what that says, below... Not bad! I'm not gonna lie, that's better than I expected. that was with no additive. Just Premium gas, which I always run, every fill-up, every time.
Now, I added 2 ounces of MAXX, refilled the tank, and headed back out on the road, to drive the IDENTICAL loop again. Same route. Starting & ending at the same gas station, same pump, same everything. Let's get started.... Also, it goes without saying, but obviously all counters were again reset, avg MPG, trip odometer, all that stuff....
All this driving did give me a chance to play with this stereo.... It has a hard drive built into it, so, over the winter, I spent a few hours loading a pile of music into it. I put in like 24 hours of music, and that nowhere near filled it, so, it holds a lot. Sounds great, and it actually worked.... Nice. Very clumsy to LOAD the music, sitting in the garage for hours, but once it's in, it's nice... Ahem, anyways, back to the test...
Oddly, traffic was a little less on the second loop.... I was cruising comfortably for a lot of it....
And, we're back! As you see above, 74.1 miles again, but this time, 22.4 mpg.... Hmmm???
Did MAXX really work???
Well, lets break it down:
Loop One:
Dashboard states: 21.9 MPG
Trip: 74.1
Fuel added at pump: 3.38 gallons
(Calculated) Observed MPG: 21.9
Loop Two:
Dashboard states: 22.4 MPG
Trip: 74.1
Fuel Added at pump: 3.33 gallons
(Calculated) Observed MPG: 22.2
If we believe the Dashboard, we got a little over 2% better mileage.
If we believe the actual fuel added at the pump, which I am inclined to take more seriously, we got 1.5% better mileage.
To be honest, I am MORE inclined to believe the ACTUAL gas put in, rather than the "dashboard" number, which, while it comes from the computer in the car, is really a mathematical algorithm, based on throttle position, rpms, and other factors.... it is not "measuring" the fuel though, in any real sense.... It gets you CLOSE, though, and, I think it is close.... Those numbers are pretty much right there... Very close.
Now, let's not kid ourselves. These are SMALL differences. SMALL. How small?
Real world: If I poured in MAXX Fuel supplement, jumped in that car RIGHT NOW, and drove 1500 miles, to see my Dad, in South West Florida, how much gas would I save??? BARELY 1 GALLON!! Keep in mind, The bottle of MAXX costs $20. 1 gallon of Premium, today, costs $3.39, where I live.... You figure it out.
Yeah. Look, this is SUCH a small difference....
I personally, for me, I see no difference. To me, the 1.5% is within the range of "rounding error" or what have you... The slight difference in traffic could have caused that...
My personal conclusion is, if you are looking for MILEAGE GAINS, MAXX is not for you. I tried to conduct a very fair test, and I tried to control for variables, and keep everything even steven. And, to be totally fair, there was a gain. A small gain.
Now, again, to be fair, I am doing this for Chris Fix. So, I will let him gather all his data, from his Youtube Subscribers, and, in the coming weeks, you can see what conclusions he draws. HIS conclusions would obviously be based on a LOT more data. Maybe other people will see more gains. Who knows. I will be watching and waiting to see what he finds out.
Now, I already have this bottle, and I intend to try it in my Harley. I would not be looking for mileage though... My bike runs a LOT better, stronger, smoother, with Lucas Fuel Treatment added to it. So, I might try the MAXX in that, to see what happens, but, I use additives there strictly for performance and driveability....
Anyways, thanks for reading. I encourage you to subscribe to CHRIS FIX on Youtube!
