Comparing different WVO types

Single Tank WVO systems and blending SVO WVO to thin it.

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Comparing different WVO types

Postby SunWizard » Sat Mar 15, 2008 11:36 am

This chart shows the large variations between WVO types and diesel and B100.

Oil_____Iodine Value__CloudPoint_______PourPoint
Corn_____103-140_____-1.1C, 30F_____-40C, -40F
Cottonseed_90-119_____1.7C, 35F_____-15C, 5F
Peanut_____80-106____12.8C, 55F______-7C, 19F
Rapeseed__94-120______-4C, 25F_____-32C, -26F
Canola____94-120______-4C, 25F______-32C, -26F
Safflower__126-152_____18C, 64F_____-6.7C, 19F
HO "_______90-100____-12C, 10F_____-21C, -6F
Soybean___117-143_____-4C, 25F______-12C, 10F
Sunflower__110-143_____7C, 45F______-15C, 5F
Rice Bran___94-120_____13C, 55F
Algae______123________-4C,25F
Diesel#2_____________-15C, 5F______-33C, -27F
B100 (canola)__________1C , 34F_____-2C, 28F

The cloud point is the start of crystal formation in the oil which gives it a cloudy appearance. As the temperature is lowered, the crystals continue to grow until the oil is no longer a fluid but a gel. The temperature at which flow ceases plus 4.5 F is defined as the pour point. The point where your filter will plug (CFPP - cold filter plugging point) is 3C (5F) below the cloud point.

Iodine value affects how fast the WVO polymerizes, see:
Polymerization thread.

These numbers will vary even within a type of WVO. Interesting that for all WVO types, the HO (High Oleic) variety are much better on all the stats. They are close to diesel for cloud point. HO Canola is what they use in WVO based motor oil and hydraulic fluids, along with anti-oxidant additives. Which means its the best to burn in your engine if you have a well worn engine and some WVO is getting past the rings at startup. They also last much longer in the fryer (some last longer than PHO) and are healthier, so get your restaurants to change if possible.

Also note that these numbers are for new WVO, as it gets more well used, the stats get worse, and the cloud point increases.
Last edited by SunWizard on Fri Sep 24, 2010 9:00 am, edited 7 times in total.
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95 Dodge Cummins 4x4 SVO WVO conversion.
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Postby John Galt » Sat Mar 15, 2008 1:35 pm

HO Canola is what they use in VO based motor oil and hydraulic fluids


what does this mean?
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Postby SunWizard » Sat Mar 15, 2008 2:44 pm

John Galt wrote:
HO Canola is what they use in VO based motor oil and hydraulic fluids


what does this mean?


My reply got so detailed, I started another thread, see:
Canola based motor oils - better than conventional and synth
Last edited by SunWizard on Fri Sep 24, 2010 8:58 am, edited 1 time in total.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
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Postby Burbarian » Sun Mar 16, 2008 1:58 pm

What, no values for tallow, lard and suet?!? That's discrimination! The chart was obviously drawn up by a bloody vegetarian! :lol:
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