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Fuels & Lubricants Discussion all about Fuels & Lubricants. synthetic oil, conventional oil, brands, change intervals, diesel grades, gelling and such debated items like that. Non TDI related postings will be moved or removed. This forum is NOT for the discussion of biodiesel and other alternative fuels.

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Old August 27th, 2014, 09:32   #1
DubFamily
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Default Real-World Testing: Round 2

Greetings all!
Back again; with the release of Opti-Lube XL I decided I wanted to get some of it, since it seems to be the best lubrication for diesel currently out there. As I was getting some anyway, I decided I would do another round of testing with this.
I am not going to go through my testing procedures again, you can find them in the first 3 posts here if you want a refresher: http://forums.tdiclub.com/showthread.php?t=383811, this round of testing I'll be doing 1 tank each of Opti-Lube XPD, Opti-Lube XL, Power Service Diesel Kleen, and a tank of straight diesel for comparison.
The one thing I've changed for this round is this: Last time I knew what product was in each bottle... So this time I've provided the materials to a friend of mine, who is also a diesel enthusiast (trucks), and asked him to provide me the bottles prepared to add to my tank but without knowing what is in each.
About two weeks ago I received my gallon of XL; and a few days ago I provided this to my friend:

The diesel is to top off each bottle so no guesses as to dosage can be made either. He just put the correct dose rate for 15 gallons in each bottle. However, yesterday he told me he had prepared the bottles, but because the bottles I provided were clear, the differences between each bottle were obvious... So I gave him 4 XPD 8 ounce bottles instead, and today I received this:



So I'll be starting "A" with my next tank of fuel, and we'll see what happens.
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Old August 27th, 2014, 09:41   #2
tditom
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looking forward to seeing your results. Thanks for taking this on.
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autos: 15 Volvo V60, 14 BMW 535d xDrive
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Old August 27th, 2014, 09:59   #3
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Also anticipating the results Jason. You the man.
I've gone from XPD to Diesel Kleen. Liked the XPD just too hard to get.
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Old August 27th, 2014, 10:44   #4
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Should be interesting as the weather is cold in the morning and warm in the afternoon, so a good mix for driving and testing.
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Old August 27th, 2014, 14:09   #5
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Subscribed!
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Old August 27th, 2014, 14:39   #6
tikal
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I really like the process approach of this round two of testing. A little bit more scientific I would say. It might take a little bit of the placebo effect out or balance it across the trials. I have not tried any of the Opti-Lube additives yet but I am in conversation with some TDI drivers to see if they would like to do a group buy (probably XL flavor).
I will curious to learn if the driver can tell the difference in terms of 'feel' of the car or sound of the engine.
Thank you very much Jason for the effort!
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Old August 28th, 2014, 03:42   #7
Conrad -JSW
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Well done Jason! I'm looking forward to finding out what's what.
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Old August 28th, 2014, 07:39   #8
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What dosage rate for XL will you be using? Are you going to dose at the recommended and say one closer to XPD? I noticed in the Opti-Lube XL testing they did two dosage rates.
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Old August 28th, 2014, 07:47   #9
DubFamily
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Each bottle has the dose rate for 15 gallons of diesel. It isn't 100% accurate for my tank size, but it is the closest easy measurement and I tend to run mine as low as I can so it should be close to that.
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Old August 28th, 2014, 14:20   #10
Sigforty
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Quote:
Originally Posted by DubFamily View Post
Each bottle has the dose rate for 15 gallons of diesel. It isn't 100% accurate for my tank size, but it is the closest easy measurement and I tend to run mine as low as I can so it should be close to that.
You may want to later try the increased dose rate for the XL.
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Old September 2nd, 2014, 07:59   #11
DubFamily
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After my first round of testing where I did a double dose test on 3 additives, I don't think it will really do anything different,.

FYI all bottle A goes in today; I have ~10miles to empty and can hopefully make it to the station before I run out...
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Old September 2nd, 2014, 08:35   #12
ize
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Watching.. for science
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Old September 9th, 2014, 06:10   #13
ISurvivedNMU
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It was cold this morning and I thought about this test. How is it going and can you get through it before the weather effects it?
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Old September 9th, 2014, 08:29   #14
DubFamily
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I apologize for the delay folks; I've just started back to school to complete my Masters and I am trying to get back into it, so time has been tight...

Weather is holding pretty steady overall so far; I am done with bottle A, bottle B is in. Planned to report this today:

Bottle A: 567 miles, 14.072 gallons, 40.29 mpg

It was a little cool this morning, but I don't think overall it will be a big hit. Due to the length of my drive overall temperature doesn't seem have much effect until it drops below about 40 degrees.
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Dub said it better.
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Last edited by DubFamily; September 9th, 2014 at 08:55.
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Old September 9th, 2014, 09:11   #15
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Quote:
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So I'll be starting "A" with my next tank of fuel, and we'll see what happens.
What exactly are you testing and what do you expect to achieve in short-term testing?
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