Recent Topics
USPS long long delivery to BlackStone Labs
by Pajero
06/19/18 02:58 PM
House A.c. vent leaking water
by motor_oil_madman
06/19/18 02:55 PM
"synthetic" gear oil and LS additive?
by nthach
06/19/18 01:54 PM
Supertech wix ST8 5514 miles
by jakewells
06/19/18 01:38 PM
Review - Sonax Spray and Seal.
by PimTac
06/19/18 01:36 PM
Lets Get a True Group 4 Sticky going!
by KMJ1992
06/19/18 12:17 PM
Rotella 10W40
by jakewells
06/19/18 10:43 AM
Extend WiFi Range at the Laptop?
by clarkflower
06/19/18 10:40 AM
Silicone containing waxes
by mjoekingz28
06/19/18 09:44 AM
Matrix totaled
by circuitsmith
06/19/18 08:32 AM
Door rust problems
by Dave Sherman
06/19/18 07:51 AM
2016 Honda Civic problems
by dbias
06/19/18 07:39 AM
Royal purple 75-140 in a subaru rear
by 91camarosRS
06/19/18 07:32 AM
OCI. With short trips. Nissan 4 liter
by Gawardawg
06/19/18 06:52 AM
Approach Watching on the Beach @ St Maarten ...
by LoneRanger
06/19/18 06:41 AM
Honda Accord Needs Shocks; Front, Back, or Both?
by tc1446
06/19/18 05:50 AM
How much oil does your oil filter hold?
by Snagglefoot
06/19/18 05:44 AM
better day
by mx5miata
06/19/18 05:26 AM
BRAVO to Officer Wheeles......
by Sayjac
06/19/18 05:17 AM
People Watching ....Airport style.
by ZZman
06/19/18 04:24 AM
Newest Members
JustaDude, 3horseman, Firedog45, WtsTacoma01, Orion62
65265 Registered Users
Who's Online
88 registered (1JZ_E46, 97f150, alex_at, 28oz, Amenhotep, aircooled, 10 invisible), 1693 Guests and 39 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65265 Members
67 Forums
285598 Topics
4766231 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4461289 - 07/16/17 10:12 PM stanadyne making truck idle rough?
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 4840
Loc: Houston, Texas
After the last few tanks of my truck having a slight shake at idle, I decided to stop using the stanadyne lubricity formula I've been using since the truck was new and it pretty much went back to idling so smooth you can barely tell the engine is even running. Opinions?

I've heard low cetane diesel fuel can cause rough idle, but what are the chances of getting 3 or 4 tanks in a row?
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4461291 - 07/16/17 10:14 PM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 4840
Loc: Houston, Texas
I do seem to recall it doing this after buying a new batch of the additive, is it possible they've changed the formula now vs back in 2007?
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4461296 - 07/16/17 10:23 PM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
Nick1994 Offline


Registered: 02/19/13
Posts: 10097
Loc: Phoenix, AZ
Where do you get fuel? Is it at the same station all the time?
_________________________
2015 Hyundai Sonata 2.4L 79k PU 5w30 & OEM
2000 Toyota Camry 2.2L 228k M1 AFE 0w30 & Wix
1996 Jeep Cherokee 4.0L 146k M1 HM 10w40 & Fram Ultra

Top
#4461308 - 07/16/17 10:39 PM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 4840
Loc: Houston, Texas
Usually it's murphys which I've never had a problem with, but nobody will change the fuel filter so I quit buying from them. I came back 3 weeks later and it was the same problem. You get idiots will sit their for 25 minutes fueling up their rigs pumping 1 gallon/minute.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4461310 - 07/16/17 10:41 PM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 4840
Loc: Houston, Texas
It doesn't make any sense that the lubricity additive could cause a shake right? The last couple tanks I've filled up at Valero since walmart has clogged filters.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4461358 - 07/17/17 12:21 AM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 4840
Loc: Houston, Texas
I guess the first step is to just go to a completely different station. I know their is a shell station that I fill up at when passing by that I have good luck with, but I only fill up there if I'm empty and happen to be driving by. No sense driving 5 miles away for fuel.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4461432 - 07/17/17 06:47 AM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA
I have never found any claim that Stanadyne caused rough idle in anyone's diesel.

I am not casting doubt on your own personal experience but maybe ruling out other possibilities is a good idea.

The suggestion to change your diesel fuel source is a good one.
_________________________
Multiple Diesel and Gasoline vehicles

Top
#4461433 - 07/17/17 06:48 AM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
bioburner Offline


Registered: 09/19/16
Posts: 1418
Loc: Minnesota
I would checkout couple of the diesel forums for this additive issue. I know I am adding a bit of 2 stroke oil with some diesel service product for my 99 and Shaffers in the old van for decades. Since sulfur has been pretty much eliminated but my area we have at least in the summer a strong shot of biodiesel that helps with lubricity.
Diesel service had a good rebate that a member here posted.
_________________________

97 Ford E350 D,99 F350 dually D
13 Scion Xb
12 Ford Transit Connect
06 Nissan Xterra
03 K1200 BMW
07 Kawasaki KLR650
13 Madass

Top
#4461442 - 07/17/17 07:14 AM Re: stanadyne making truck idle rough? [Re: bioburner]
ArcticDriver Offline


Registered: 01/27/17
Posts: 1139
Loc: USA
Originally Posted By: bioburner
I would checkout couple of the diesel forums for this additive issue. I know I am adding a bit of 2 stroke oil with some diesel service product for my 99 and Shaffers in the old van for decades. Since sulfur has been pretty much eliminated but my area we have at least in the summer a strong shot of biodiesel that helps with lubricity.
Diesel service had a good rebate that a member here posted.


Are you referring to Power Service Diesel Kleen products?

I fully agree on the bio-diesel and no harm with 5% Bio (B5) although your BioD is probably made from high quality soy and I am not sure the source in TX.
_________________________
Multiple Diesel and Gasoline vehicles

Top
#4461532 - 07/17/17 08:59 AM Re: stanadyne making truck idle rough? [Re: ArcticDriver]
bioburner Offline


Registered: 09/19/16
Posts: 1418
Loc: Minnesota


Are you referring to Power Service Diesel Kleen products?


[/quote]
Yes.

I know there is different sources of the bio oil used. I have heard of the use of rendering plant for one source. Even the use of chicken grease. Had a friend plumb a boiler for its use.
_________________________

97 Ford E350 D,99 F350 dually D
13 Scion Xb
12 Ford Transit Connect
06 Nissan Xterra
03 K1200 BMW
07 Kawasaki KLR650
13 Madass

Top
#4461540 - 07/17/17 09:14 AM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 4840
Loc: Houston, Texas
I always was concerned about the lubricity and not the cetane level. The diesel clean ups the cetane, but doesn't do much for lubricity.

Is this why I hear people say that the US has horrible diesel fuel? Frequently buying low cetane fuel?
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top
#4461543 - 07/17/17 09:16 AM Re: stanadyne making truck idle rough? [Re: motor_oil_madman]
motor_oil_madman Online   content


Registered: 11/29/09
Posts: 4840
Loc: Houston, Texas
I guess the rest now is add some stanadyne and see if the idle becomes rougher
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


Top