How Long? - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

DuramaxForum.com is the premier Chevy and GMC Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 06-05-2012, 02:21 PM   eBay Motors  #1 (permalink)
Junior Member
 
Join Date: Apr 2012
Location: Connecticut
Posts: 36
How Long?

How long do you guys let your truck idle for when you start it first thing in the morning? (or after sitting for a long period of time) Should it run for longer the colder it is outside?

How long do you guys let the truck cool down for after driving it for a while?

I usually let mine run for about 5 mins in the morning but I'm wondering if its a waste of fuel or if I'm not running it long enough. As far as letting it cool down, I generally don't because I work about 15 mins from home so the truck doesn't run for too long. But when i do make longer trips I'll usually let it cool down for 5 mins or so.

So what do you guys think? Waste of fuel? or good idea?
__________________
'01 GMC Sierra dually
Air lift- Air ride suspension
Air Dog II 165
Magnaflow 4" turbo back exhaust

Last edited by 01 Duramax 3500; 06-05-2012 at 04:43 PM.
01 Duramax 3500 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 06-05-2012, 05:29 PM   eBay Motors  #2 (permalink)
Senior Member
 
RichieRich's Avatar
 
Join Date: Mar 2012
Location: Jurupa Valley, Ca
Posts: 274
<<<<<<interested
__________________
2003 Chevy Silverado 2500HD CC SB Duramax
Airaid Intake, 4" Cat Back Jardine Exhaust, '06 Tow Mirrors, Husky 24k Slider Hitch, Tekonsha Prodigy, Billet Grill, Injectors Done at Dealer at 125k...now has 157k, UltraGauge
Nicktane Adapter and Donaldson filter on its way
RichieRich is offline   Reply With Quote Quick reply to this message
Old 06-05-2012, 05:34 PM   eBay Motors  #3 (permalink)
DuramaxForum Veteran
 
primetime_2's Avatar
 
Join Date: Sep 2011
Location: WI
Posts: 1,072
depends on temp but i think its always a good thing to let things warm up some before operating not to mention a diezel always takes a bit longer to get up to 190
__________________
-2012 DENALI 1500

-2006 GMC CCSB LBZ --Sold--

http://performancetruckproducts.com/

-2004 Grand Prix GTP
Stocker

-2008 Pearl White Streetglide
primetime_2 is offline   Reply With Quote Quick reply to this message
Old 06-05-2012, 05:37 PM   eBay Motors  #4 (permalink)
born country
Supporting Member
 
Dmaxryan10's Avatar
 
Join Date: Nov 2010
Location: western NC
Posts: 2,431
summer, about 2 min warm up.
winter 5-10 depending on temp.
keep a fuel additive in it and drive...

that's what i do atleast.
__________________
NEW TRUCK- 2006 LBZ cc/sb loaded southern coach, smoky mountain sportsman edition, 20" black hostile havoc's, 305/50/20 nitto trail grapplers, EFI LIVE by rob at ATP performance, 5" exhaust, transgo jr, egr blocked, pcv rerouted, isspro ev2 gauges, tinted windows, just gettin started!
Dmaxryan10 is offline   Reply With Quote Quick reply to this message
Old 06-05-2012, 05:42 PM   eBay Motors  #5 (permalink)
Senior Member
 
redneck6821's Avatar
 
Join Date: Mar 2011
Location: Union, Ct
Posts: 768
Usually i let mine warm up for 5-10 in the summer and around 20 in the winter if its real cold out even if its plugged in. I would rather spend and few bucks in fuel and let the oil warm up and everything get moving for a while before i get started. Also I get on the interstate about 3 minutes after leaving my house.
__________________
02 GMC ccsb
Fabtech 8" lift
38" Kumho Road Venture MTs
18" American Racing ATX rims
mbrp 4"
K&N CAI
Pioneer 7" indash DVD
nicktane adapter
redneck6821 is offline   Reply With Quote Quick reply to this message
Old 06-05-2012, 05:45 PM   eBay Motors  #6 (permalink)
Stupid Has The Balls
Supporting Member
 
Odyssey25013's Avatar
 
Join Date: May 2009
Location: CT
Posts: 2,521
A minute on idle when its above 40 then switch on high idle for 3 to 5 minutes depending on the temp. Under 40, I let the truck do her thing with elevated idle. For an LB7 I would just switch on the high idle and let it sit for 5-10 min. Might burn more fuel, but its nice going into a warm truck. As for cooling down, I just wait until the egt's hit 350 degrees.
__________________
Ben
2006 LLZ LT3 EC/LB
"Going for Broke"

Some Expensive Parts, Good Times, Busted Knuckles, Long Nights and Fancy Gauges So I Can Watch While I Blow Things Up

Special Thanks To Ben Tyler at BT DieselWorks, LLC. For All The Help and Hard Work



Last edited by Odyssey25013; 06-05-2012 at 05:48 PM.
Odyssey25013 is offline   Reply With Quote Quick reply to this message
Old 06-06-2012, 02:18 AM   eBay Motors  #7 (permalink)
Junior Member
 
Join Date: Apr 2012
Location: Connecticut
Posts: 36
I don't remember where, but i read an article somewhere that said with a gas vehicle letting the car or truck warm up was just a waste of gas (ill try to find the article) but i figured with diesel it must be different (especially in the winter)

I know with our rigs at work we usually let them warm up at least 10 mins before we drive them but as far as cool down goes, we just shut them off when we get to where we need to be.

Anyone else?
__________________
'01 GMC Sierra dually
Air lift- Air ride suspension
Air Dog II 165
Magnaflow 4" turbo back exhaust
01 Duramax 3500 is offline   Reply With Quote Quick reply to this message
Old 06-06-2012, 05:53 AM   eBay Motors  #8 (permalink)
Duramax Lifetime Supporter
Lifetime Supporting Member
 
2trout's Avatar
 
Join Date: Apr 2012
Location: Cameron MT
Posts: 437
around here in south/western MT, I let it idle anywhere between 5-10 minutes, come next winter both our trucks will be garaged, so that should help it along a bit.
I can plug mine in, but have not had the need to do that....yet.
__________________
'MONGO' '02 2500HD 4X4 CC/SB
Built transmission - GOS Performance; Suncoast 6 speed conversion
Flex-A-Lite 284 Electric Fans; Mean Green Alternator
4" MBRP Exhaust; MBRP Downpipe; BD Power Exhaust Manifold
BatMoWheel (stock turbo housing), PPE Boost Valve
ProFlow Air Horn; aFe cold air intake
Edge Insight CTS with EAS expansion system, EGT, Boost & Ambient Temp; EFILive via CTS - Idaho Rob
AirDog II DF-165
Firestone Ride Rite air helper springs
Bilstein shockers
2trout is offline   Reply With Quote Quick reply to this message
Old 06-06-2012, 07:06 PM   eBay Motors  #9 (permalink)
Junior Member
 
Neutron's Avatar
 
Join Date: Jun 2011
Location: Colorado
Posts: 81
Winter I let mine idle for about 10min or so. Summer I usually let it idle for a min or two. It is a gradual down hill on my way out of town so it has an easy first few miles drive.
__________________
01' Chevy 2500 ecsb 4x4. Banks 6 gun with speed loader. Egt and boost gauges. Banks Big Head, BatMoWheel, S&B intake, MBRP down pipe and 4in turbo back exhaust. Kennedy diesel lift pump and aux. Cat 1r 0749 filter.
Leveled with 285/75 16 Treadwright guard dogs
Neutron is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply


Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Chevy and GMC Duramax Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 01:25 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.

Search Engine Friendly URLs by vBSEO 3.3.2