Go Back   EcoModder Forum > EcoModding > Off-Topic Tech
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-06-2016, 10:36 PM   #1 (permalink)
Master EcoModder
 
nemo's Avatar
 
Join Date: Nov 2010
Location: US
Posts: 1,010

Chief - '06 Pontiac Grand Prix
90 day: 26.7 mpg (US)

SF1 - '12 Ford Fiesta S
90 day: 25.16 mpg (US)
Thanks: 195
Thanked 246 Times in 189 Posts
Why You Should Never Warm Up Your Car

Quote:
Engine oil dilution. It turns out, while you might have thought that letting your car slowly warm up was reducing wear and tear, all that idling time leads to raw gasoline seeping into the oil, breaking down the oil's lubrication properties and increasing the wear.
From here:
Is Warming Up Your Car Bad? - Why You Should Never Warm Up Your Car in Winter

Another reason. not to warm up.

  Reply With Quote
The Following 3 Users Say Thank You to nemo For This Useful Post:
LittleBlackDuck (08-07-2016), oil pan 4 (08-07-2016), Xist (10-09-2016)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-07-2016, 12:18 AM   #2 (permalink)
Corporate imperialist
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 10,638

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 256
Thanked 3,399 Times in 2,693 Posts
That's why I use multiple block heaters.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
Old 08-07-2016, 01:04 AM   #3 (permalink)
Master EcoModder
 
Join Date: Jan 2015
Location: Atlanta area
Posts: 410
Thanks: 966
Thanked 74 Times in 63 Posts
I don't believe him. I think modern cars do not inject so much gas into the engine as he claims. Now, do I warm up my car before I drive it? No. But I live in GA. If I lived along Lake Superior and it was 20 below, I sure as h would warm it up some. Besides the gas that gets into the oil evaporates and is burned.
  Reply With Quote
Old 08-07-2016, 06:31 AM   #4 (permalink)
Corporate imperialist
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 10,638

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 256
Thanked 3,399 Times in 2,693 Posts
I had an old 1885 2.8L v6 chevy that had 2 injectors on the number 1 cylinder. It was there to richen the exhaust to get the converter up to temperature. A waste of gas. I unhooked the power to that injector and gutted the converter. Got 2 to 3 mig better in the coldest of winter. I would get as little as 14mpg highway on the coldest days.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
Old 08-07-2016, 08:30 AM   #5 (permalink)
Master EcoModder
 
nemo's Avatar
 
Join Date: Nov 2010
Location: US
Posts: 1,010

Chief - '06 Pontiac Grand Prix
90 day: 26.7 mpg (US)

SF1 - '12 Ford Fiesta S
90 day: 25.16 mpg (US)
Thanks: 195
Thanked 246 Times in 189 Posts
Most cars and trucks today don't need to be warmed up from a a drive-ability stand point. It's my belief that it is done for cabin heat, just as in the south they are left running to keep it cool. While we can't determine how much wear is created by the fuel enrichment and additional running time there is obviously some. Just as which engine has more wear a lower mileage car driven in the city or a higher mileage car driven on the highway.
Is oil dilution reduced in modern vehicles absolutely, I'll bet the management system doesn't forget to remove the choke (an antiquated method of fuel enrichment by reducing air flow.).
  Reply With Quote
Old 08-07-2016, 08:44 AM   #6 (permalink)
Corporate imperialist
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 10,638

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 256
Thanked 3,399 Times in 2,693 Posts
Too much fuel can also glaze cylinder bores.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
Old 08-07-2016, 11:46 AM   #7 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 11,639

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 32.98 mpg (US)
Thanks: 7,137
Thanked 2,146 Times in 1,646 Posts
Crazy Ex said she needed to let the Forester warm up for some excuse that did not matter to me. I responded the best way to warm up an engine is by driving it, which I read here
  Reply With Quote
Old 08-07-2016, 02:52 PM   #8 (permalink)
Master EcoModder
 
Join Date: Jun 2008
Location: Oregon
Posts: 541

Economy Saturn - '02 Saturn L200
Thanks: 250
Thanked 194 Times in 153 Posts
Some modern "clean" Diesels inject fuel on the exhaust stroke to heat the cat to burn the soot in the exhaust filter. This regen process works fine if you happen to be driving on the highway. I work for an electric utility and this system has caused a lot of problems when the regen process gets interrupted. Our trucks often run at low speeds and run a power take off to power the boom. The regen process only runs while driving. Unburned fuel ends up in the crankcase diluting the oil. That and all the high pressure fuel system is under the valve covers, if something leaks it stays inside. The oil capacity is 15 quarts and we have to monitor oil level for over level. We have drained as much as 25 quarts of diluted oil from these trucks.
  Reply With Quote
Old 08-07-2016, 05:54 PM   #9 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 11,076

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 25.39 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
Thanks: 3,776
Thanked 4,095 Times in 3,106 Posts
I'd pull the DPF off depending on what county you have the trucks registered.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 08-08-2016, 12:32 AM   #10 (permalink)
Master EcoModder
 
Join Date: Jun 2008
Location: Oregon
Posts: 541

Economy Saturn - '02 Saturn L200
Thanks: 250
Thanked 194 Times in 153 Posts
We serve 6 western states, our trucks stay 50 state emission compliant.

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com