Re: Block Heater When Needed
Reply #25 –
I have had oil temp in the low teens and it never slowed the cranking speed down. I start here in the morning with overnight temps in the 20's in winter. It does put more strain on the electrical connections and will quickly show up any weakness. I have the same engine with straight SAE 40 Delo 100. After slow cranking, testing the connections with your hand can quickly find the trouble spot as it will be very warm.
Pierce