2-Cycle Oils VOA Analysis

[MolaKule]

VOA Samples of 2-Cycle Oils

Here is a sample of Pennzoil's XLF TCW3 oil:

Analyzed 8/13/2006

PPM:
copper - 0
iron - 0
chrome - 0
nickel - 1
titanium - 0
vanadium - 0
silver - 0
lead - 0
tin - 0
aluminum - 0
silicon - 2
sodium - 1
potassium - 0
moly - 0
boron - 2
barium - 0
calcium - 14
magnesium - 0
phosphorous - 28
antimony - 0
zinc - 38

SAE Grade - 30

One of my old 2-cycle formulations:

Wear Metals(PPM):
Copper - 0
Iron - 0
Chromium - 0
Aluminum - 0
Lead - 0

Additives(PPM):
Molybdenum - 2
Phosphorus - 9
Zinc - 15
Magnesium - 0
Calcium - 38

Viscosity@100C = SAE 30


A Mobil 1 2-Cycle Oil:

Fe 3
Cr 0
Ni 0
Al 0
Pb 2
Cu 0
Sn 0
Ag 0
Ti 8 interesting FM
Si 0
B 3
Na 2
K <10
Mo <5
P 21
Zn 11
Ca 297
Ba <10
Mg 2
Sb <10

Viscosity@100C = SAE 30

Addendum Note: The Mo contained in some formulations is for combustion enhancement.

Some formulations may contain a low-smoke additive and a fuel stabilizer such as N,N'-di-sec-butyl-p-phenylenediamine, which do not show in a low-cost VOA.

 

[fantastic]

Thanks for sharing these oils. I wonder how they'd look today. The 2 stroke with fuel stabilizer is convenient but I usually have trouble finding them in my neck of the woods.

 

[MolaKule]

Thanks for sharing these oils. I wonder how they'd look today. The 2 stroke with fuel stabilizer is convenient but I usually have trouble finding them in my neck of the woods.

Well, get your new oils and have them analyzed.

 

[fantastic]

Well, get your new oils and have them analyzed.

Great idea!

 

[jtwrace]

Thanks for sharing these oils. I wonder how they'd look today. The 2 stroke with fuel stabilizer is convenient but I usually have trouble finding them in my neck of the woods.

The VP that I'm doing does have stabilizer in it according to the label.

 

[RDY4WAR]

Addendum Note: The Mo contained in some formulations is for combustion enhancement.

Can you elaborate some more on this? Combustion enhancement as in making the mixture burn slower/faster? Make it easier to ignite?

 

[MolaKule]

I am not sure what a VOA is going to tell you, but here is some background on 2-cycle formulations:

Thread 'Two-cycle oil Formulations'

Apr 11, 2024

In case you missed this topic, here is a write-up on two-cycle oils:

While this may be your first set of analyses for 2-C oil, there is really nothing controversial or strange about the analysis.

There are different strokes for different folks - pun intended. There are various approaches to formulations for each type of application.

In a two cycle oil you want the least amount of organo-metallic components in order to keep the ash deposits to a minimum.

A one-pass lubricant must provide a lubricating oil film with a sufficient film thickness to keep parts wear at a minimum, yet...

• MolaKule
• Replies: 49
• Forum: Lawn Mower and Small Engine

• 
• 

 

[MolaKule]

Can you elaborate some more on this? Combustion enhancement as in making the mixture burn slower/faster? Make it easier to ignite?

This is a special form of Mo that increases combustion efficiency.

 

[jtwrace]

I am not sure what a VOA is going to tell you, but here is some background on 2-cycle formulations:

So you don't think we'll learn anything by doing the Basic with Oxidation and Nitration?

 

[MolaKule]

So you don't think we'll learn anything by doing the Basic with Oxidation and Nitration?

View attachment 299833

It will be a fun observation, but what will we really learn?

The best we can do is look at the results and make assumptions and conjectures.

 

[RDY4WAR]

This is a special form of Mo that increases combustion efficiency.

Can you share the name of the additive? I'm yearning for a white paper rabbit hole. I want to dig into the chemistry of it, how it reacts, and so on.

 

[jtwrace]

It will be a fun observation, but what will we really learn?

The best we can do is look at the results and make assumptions and conjectures.

The more questions we ask, the more we learn—and to me, that’s always worth it.

 

[MolaKule]

Can you share the name of the additive? I'm yearning for a white paper rabbit hole. I want to dig into the chemistry of it, how it reacts, and so on.

One combustion improver is a special sulphurized oxymolybdenum dialkyl-dithiophosphate.

Another combustion improver is a borated polyisobutenyl (Mn 950) succinimide dispersant.

Combustion improvers increase burn time and reduce port deposits.

 

[RDY4WAR]

One combustion improver is a special sulphurized oxymolybdenum dialkyl-dithiophosphate.

Another combustion improver is a borated polyisobutenyl (Mn 950) succinimide dispersant.

Combustion improvers increase burn time and reduce port deposits.

Good stuff. Thank you.

 

[SubieRubyRoo]

Combustion improvers increase burn time by giving additional material to burn and keep temps hot in the exhaust? Interesting!

 

[Chris142]

Thanks for sharing these oils. I wonder how they'd look today. The 2 stroke with fuel stabilizer is convenient but I usually have trouble finding them in my neck of the woods.

Seems that most of the oils for ope have a stabilizer . The oils for dirt bikes and go carts do not .

 

[fantastic]

Seems that most of the oils for ope have a stabilizer . The oils for dirt bikes and go carts do not .

Must be a regional thing.
I can only tell if it has the stabilizer included if it mentions it on the bottle somewhere. Even the Super Tech Full Synthetic I am currently using doesn't mention anything.

 

[Chris142]

Must be a regional thing.
I can only tell if it has the stabilizer included if it mentions it on the bottle somewhere. Even the Super Tech Full Synthetic I am currently using doesn't mention anything.

You don't have ethanol shield or echo red armor around? I doubt super tech would have it. Have you been to Lowe's or home Depot?

 

[fantastic]

You don't have ethanol shield or echo red armor around? I doubt super tech would have it. Have you been to Lowe's or home Depot?

I'll try to visit those two stores & see what they offer, thanks. The one I did find a few years back was from Menard home improvement store & it was a "Semi-Synthetic" w/stabilizer. I haven't seen it back in stock since then.

 

[MolaKule]

Combustion improvers increase burn time by giving additional material to burn and keep temps hot in the exhaust?

They increase burn time by burning as much fuel as possible before the exhaust port opens. Burning as much fuel as possible means less unburnt fuel going out the exhaust port and leaving residues.