I have an lb7 and normally run Delo 15w40. This winter I plan on doing some driving up in Minn. and had a question about running that oil for a couple of weeks and if the temp gets below 0 degrees will it do any harm to have the 15w40 in motor.


Thanks in advanced for help and tips.

if you have a block heater then plug it in if temps get below 20 deg. F


this helps alot. when i plug my truck in at these temps, i can start it up in the mornings with no problems and the glow plugs heat up like the engine is already warm. http://dieselplace.com/forum/smileys/smiley4.gif


if you don't have a block heater then what i've read here is that you should use the ac delco oil filter because it has a pressure releif valve if pressures get too high.


have a safe trip up northhttp://www.dieselplace.com/forum/smileys/smiley36.gif and stay warm

15W-40 will be fine. It is recommended that you plug the truck in when it gets below zero though.


If you're really anal, you can shift to Delvac 1 during the period that you will be up North.


However, unless you plan on seeing regular low temps and put the truck under severe service most of the time, 15W-40 dino will be fine for your needs.


I run Delvac 1300 Super 15W-40 and will shift to Delvac 1 at 10,000-12,000 miles. But I only plan to do this due to the long periods of time that my truck sits, (Driveway Queen), and the desire to go to yearly oil change intervals. I put less than 9000 miles a year on my truck and it's primary duty is to pull a trailer @ 6000 lbs. It is babied and not really stressed.


Hope that helps.

If you know far enough in advance before your trip just sub out the Delo 15w40 for Delo 5w40 on the change before your trip. The 5w will be fine in anahiem and will ensure good viscosity in the colder climates along your travels. Thats what I run up here in the winter and there are a few that run it all year round.

I run schaffers suppreme 7000 in the winter. its a semi synthetic. I would run the stuff year round but I have accest to free shell rotella so i run that in the summer but still pay for oil in the winter. Schaffers lists as a 15w 40 but it has a lower pour point than a 15 40 so it flows better when cold. JMO


delvac is good too IMO


Yup on plug her in. Not needed but it helps and your truck will thank you and you will have instant heathttp://www.dieselplace.com/forum/smileys/smiley4.gif Let her warm up plenty too before you hog on her and run the winter cover or get one of those cool man stainless ones max power has. And I always cary and extra fuel filter and run a fuel additive just for extra peice of mind against the thought of having fuel "gell"

Thanks a bunch for your replies, all this info really helps and gives me peace of mind to follow what you cold weather guys do 'cause I know it will work.

I will be running Shell Rotella 5W40(synthetic) for the colder
months. Some people run it year round, as said above. A
fuel additive that prevents gelling is also a fairly safe bet, to
use. Stanadyne Performance Formula is a good one. Also
approved by GM. But there are also others.

Come on guys you are depressing me. We hardly had summer up here now you're talking about below zero weather.http://www.dieselplace.com/forum/smileys/smiley36.gif


BTW, I run 15W-40 year round.

10' of SNOW! http://www.dieselplace.com/forum/smileys/hihi.gif

Ok new diesel guy here I’ve been looking for Stanadyne Performance Formula and haven’t been able to find it out here <?:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place><st1:City>St. Louis</st1:City>, <st1:State>MO</st1:State></st1:place> area. Can anyone point me in the right direction? And am I not looking in the right place but I can’t find the heater plug on my 2002 2500HD – did they not all come with block heaters? If not are there any good aftermarket ones or should I just pony up and get a GM heater? Or… not worry about it in the <st1:place>Midwest</st1:place> here and just run some 5w40 in the winter?
Thanks guys this site is awesome! Give me confidence to work on my diesel. I do all my own work on my gas trucks but was hesitant to work on the diesel all new to me. <?:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

thinkenbig-


I get Stanadyne at Disel Injection Service:


http://dieselpage.com/


They have very good prices.

thinkenbig,


I am in Mexico, MO;Capital Diesel in Holts Summit near Jefferson City has it. I know that is not really close to you, look in yellow pages under "truck".

Diesel Fuel Injection Service, 9331 So. Broadway 314-631-2500


I get it there all the time. I think it's the only place in St. Louis that has it. Block heater????Save your money ,it doesn't get that cold here in St. Louis. PM me, I'll pick some up for you, and give it to my son. You can get it from him, he lives in St. Charles just west of the Page extension, unless you get down that way. often. PM and let me know.Edited by: Bethron1

Thinkenbig:


You will find the cord for the block heater tied back on the passenger side frame under the overflow tank. Simply feed it out to a convenient place out front.


Denny

Are you sure you have the cold weather package on your truck. If not you don't have a block heater.


Also check any NAPA store for the Stanadyne. They should have it.


I do run 15w40 year round but it is also RP synthetic. I also don't plug my truck in unless it is in the single digits or colder. And that is if it is outside.


For the temps farther north we run Delo 0w30 year round. This is with temps in the winter times getting as cold as -45 deg f ambiant and summer temps as warm as 60 deg f ambiant.

The first year I had my truck I ran Rotella 5w40 for the winter months. Last winter I just ran the Schaeffer's throughout. It's cold here, but we only had a 2 week stretch of single digits or below and the truck started fine with it. I let it idle a little longer before making her go, but all seemed fine.


This year I'm going back to 5w40 since my gut tells me a nasty winter is coming up. Also I put in a remote starter a few weeks ago so I want the easier starts.

Bethron1 thanks bud but i got to school at Ranken so Im down that way a couple times a week. Thanks for the offer though. Akdiesel my truck came from <?:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><ST1:STATE><ST1:PLACE>Texas</ST1:PLACE></ST1:STATE> so Im guessing it doesn’t have one, is there an easy way to check?
thanks guys<B style="mso-bidi-font-weight: normal"><?:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><O:P></O:P>[/B]Edited by: thinkenbig

I thought they all had the plug? Hmmm......look for the overflow tank and there is a bundle of wires in a loom clipped to the fender by it. Plug should be bundled up with that. You can probably check out my routing sun. I have mine coming out the hole in the front bumper.


You got a cold front? If not the cloud rider SS one is sweeeeet. Got mine from max power.


I run FTTP or FFTP or what ever that acronym. I think I have seen staynadyne at wally world?

ThinkenBig, try this place:



<TABLE cellSpacing=0 cellPadding=0><T>
<T>
<TR>
<TD vAlign=top align=left>DIESEL FUEL INJECTION SERVICE, INC.</TD></TR>
<TR>
<TD vAlign=top align=left width=125>Dealer Type</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>Service Dealer</TD></TR>
<TR>
<TD vAlign=top align=left width=125>Address</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>9331 So. Broadway</TD></TR>
<TR>
<TD vAlign=top align=left width=125>City</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>ST. LOUIS</TD></TR>
<TR>
<TD vAlign=top align=left width=125>State</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>MO</TD></TR>
<TR>
<TD vAlign=top align=left width=125>Country</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>United States</TD></TR>
<TR>
<TD vAlign=top align=left width=125>Zip Code</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>63125</TD></TR>
<TR>
<TD vAlign=top align=left width=125>Phone</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>314-631-2500</TD></TR>
<TR>
<TD vAlign=top align=left width=125>Fax</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>314-631-1131</TD></TR>
<TR>
<TD vAlign=top align=left width=125>Email</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>jgw23@aol.com</TD></TR>
<TR>
<TD vAlign=top align=left width=125>Web Site</TD>
<TD width=20> </TD>
<TD vAlign=top align=left width=175>www.dieselfuelinjectionservice.com (http://www.dieselfuelinjectionservice.com/)</TD></TR></T></T></TABLE>Edited by: Heartbeat Hauler

Block heaters are standard equipment on the diesel powered GM light trucks.


Dennyhttp://www.dieselplace.com/forum/smileys/smiley32.gif

When I ordered my truck it had to choose the Cold Weather Pachage which included the block heater. I am not sure of the code number.