VRO OIL flow at very low temperatures

[bob johnson]

so I recently aquired a 1996 70 HP johns that still had the vro oil portion working and hooked up. Im going to give it a try, but since i use the boat in winter in salt water, im worried about the thickness of the oil that needs to flow to the fuel pump! Im wondering if it will be inadequate . Any one know if temperatures like 5 degrees or even lower might cause the oil tank to get too thick and inhibit the flow of oil to the motor? Thanks Bob

 

[dingbat]

I've left the dock with air temps in the mid to upper teens (water temps mid to upper 30's) more than a few times over the years. No problems.

TC-W3 certifications requires a min. grade 3 fluidity which is -25 C. Grade 4 fluidity is -40 C

 

[Scott Danforth]

the water turns to ice before you have to worry about the 2-cycle oil.

 

[bob johnson]

the water turns to ice before you have to worry about the 2-cycle oil.

the water starts slushing at about 29 or 28 degrees... but the air temps are usually in the single digits for a while before the water turns that cold!!

 

[Scott Danforth]

at the -25C that the oil is still flowing, even the salt water has long ago froze. again, water turns to ice before you have to worry about the oil.