Some of the reasons I prefer to use an engine block heater: An engine warmed by a block heater will warm-up more quickly providing cabin heat sooner and use less fuel as the engine temp is arrived at
sooner. Engine wear should also be reduced and the load on the battery less..It is also reassuring @ -40º the vehicle will start..Depending on the ambient, a plug-in time of 2 to 3HRS is sufficient. The heaters
usually run 100 watts/ cylinder. 100W x 3HRS = .3KWH. Not too costly for the above mentioned gaines. There has not been an issue starting. As Paul stated, modern engines.....The new Toyota engines are
lubricated using a 0W-16 oil. That' almost like diluted water so viscous drag compared to a 5W/30 or 0W/20 is less. If you think 0W- 16 is low viscosity, 0W-8 is on the way.
The Toyota block heater is in the $250.00 range plus 13% tax. It ia s cartridge unit that fits most of their engines. I can purchase the heater for under $50.00 from one of the heater manufacturers who don't
know the placement location.. I just need to locate the hole to install it..This is the all new AK25H-FKS engine introduced in the Camry in 2018. The Toyota dealer isn't willing to divulge the information unless
I purchase the heater from them...I see their point. Just feel it way over priced..