Originally Posted By: zpinch
Originally Posted By: bigt61
How do those millions of poor Canadian engines survive every winter on 5W-30 dino? They must be blowing up and wearing out in droves. I'm sure there will be a news story soon.
People use block heaters... But really an oil pan heater much better as it heats the oil to around 170+ F along with the entire engine. The most important thing is the have thinner oil on cold start up. Cold starts cause so much wear on our engines in canada.
I've only ever started up our Tracker once with 5W30 dino at -32C without plugging the block heater(at a hotel) and I'm not eager to do it again. It just sounds terrible... Lots of hydraulic groaning and chattering from the oil pump. It had to be doing some damage.
Last winter at -32C with 5W30 syn and a block heater, it was almost like a normal start, slightly slower crank over, but started right away with no noises.
Anyways for the GTA, I would still get some 5W30 syn on sale, and run it a bit longer, say 50%, and never have a worry even with the odd -25C unheated start.