Originally Posted By: OVERKILL
Originally Posted By: turtlevette
Originally Posted By: OVERKILL
He plugs in the truck so it doesn't matter anyways. I touched on this either earlier in this thread or another. Anything will work fine of it is pre-heated, LOL!
I've always wondered how much water jacket heaters warm the oil. I suspect not that much. So it could matter if a 10w or 15w oil is used.
Originally Posted By: Tiredtrucker
And I lived in the interior of Alaska for 10 years. Never used anything other than a 5w30 in my personal stuff and never had any motor issues or failures. Granted, when it was averaging around -35F or lower,
you can be sure that the block heater was plugged in, the oil pan heater was plugged in, and the battery blanket was plugged in. Never had any starting issues down to -72F, the lowest temp I ever experienced.
And I am sure that warm coolant warms the oil. And would warm it more as soon as it was pumped into a warm block.
But hey, let me check that for you this winter with the Charger (the '06) since it measures oil temp and has block heater.
When I plug mine in the oil temp is significantly affected during winter.
I can't say for sure if the oil has its own mechanism as far as being heated or if it's just radiant from the block heater itself.
the difference was in the neighbourhood of 30c. So if it was -30c a,Binet the evic stated oil temp was 0.
But again I don't know if the heat is just a bi-product of the block heater.