View Single Post
Old 12-05-2017, 09:01 AM   #5 (permalink)
Daox
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,585 Times in 1,553 Posts
Yes, running the engine warmer (all other things constant), will allow you to loose less heat into the coolant. This means more is going to go into pushing the piston.

That assumes the ignition timing is staying constant, and heating things up more in the cylinder tends to cause pre-ignition earlier than in a cooler engine. So, it really depends on the engine design and its ability to avoid pre-igntion, and how conservative/aggressive the ECU programming is.
__________________
Current project: A better alternator delete
  Reply With Quote
The Following 2 Users Say Thank You to Daox For This Useful Post:
Daschicken (12-05-2017), Xist (12-05-2017)