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To change oil or not? PSD 6.7 #4717123
04/05/18 11:09 AM
04/05/18 11:09 AM
Joined: Jan 2012
Posts: 131
Edmonton, Alberta, Canada
advocate Offline OP
advocate  Offline OP
Joined: Jan 2012
Posts: 131
Edmonton, Alberta, Canada
I have a 2011 F550 6.7 with really low mileage. Only has 26500 kms on it. It sits in a heated garage most of the time. Gets used mainly in the summer to tow a telehandler or for camping duties. Oil is changed at the dealer using delvac 5w-40 synthetic. Oil was changed about 2.5 years ago. But it only has 5000 kms on the oil. Whats your opinion on changing oil on these? Around here people are crazy and say that you have to change oil every 8k kms max or 6 months. And thats pushing it. They would rather you change every 5k kms. And fuel filters every 10k kms...

The truck has an oil life monitor but it has never gone off saying to change the oil. Its out of warranty not based on time alone. Its one of those things - its a tool. When I need it I need it to work. Just looking for opinions on these so I can learn more about it. It will likely be used more in the coming year then in the past.

Re: To change oil or not? PSD 6.7 [Re: advocate] #4717140
04/05/18 11:20 AM
04/05/18 11:20 AM
Joined: Sep 2014
Posts: 2,140
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,140
US-WA
Dumping oil at 3k miles is a no for me. A synthetic at that milage is a [censored] no.


95 Cherokee 190K DELO 10W30, XG8
07 IS250 100K Napa 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 20K VR1 20w50, NG1515
14 RX450h 33k PP MIX, NG7047
Re: To change oil or not? PSD 6.7 [Re: advocate] #4717156
04/05/18 11:35 AM
04/05/18 11:35 AM
Joined: Aug 2008
Posts: 3,221
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,221
Where the wind comes sweepin'
If you have never short tripped it then the oil is probably still good.

Re: To change oil or not? PSD 6.7 [Re: advocate] #4717193
04/05/18 12:23 PM
04/05/18 12:23 PM
Joined: Aug 2013
Posts: 342
Alberta
tcp71 Offline
tcp71  Offline
Joined: Aug 2013
Posts: 342
Alberta
I would change it. Edmonton winters, especially if it has been through the temperature fluctuations, without being started would cause all kinds of condensation. Every 2.5 years shouldn't break the bank. The oil change will be less than the cost of filling the tank a single time.

Last edited by tcp71; 04/05/18 12:34 PM.

2016 F150 Eco: Edge 0w40
2005 Sienna 3.3: mobil 0w40 (varies)
Re: To change oil or not? PSD 6.7 [Re: tcp71] #4717203
04/05/18 12:34 PM
04/05/18 12:34 PM
Joined: Mar 2015
Posts: 199
Ontario Niagara region
Drosselmier Offline
Drosselmier  Offline
Joined: Mar 2015
Posts: 199
Ontario Niagara region
To the OP. Change it. Oil is cheap compared to engines. Helps you to sleep better.

Re: To change oil or not? PSD 6.7 [Re: advocate] #4717227
04/05/18 01:05 PM
04/05/18 01:05 PM
Joined: Oct 2010
Posts: 7,033
Michigan
A_Harman Offline
A_Harman  Offline
Joined: Oct 2010
Posts: 7,033
Michigan
Keep running the oil until the life monitor says to change it.


1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck
Re: To change oil or not? PSD 6.7 [Re: advocate] #4717230
04/05/18 01:10 PM
04/05/18 01:10 PM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
Change it every 1 thousand miles in your case


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: To change oil or not? PSD 6.7 [Re: advocate] #4717248
04/05/18 01:33 PM
04/05/18 01:33 PM
Joined: Jan 2012
Posts: 131
Edmonton, Alberta, Canada
advocate Offline OP
advocate  Offline OP
Joined: Jan 2012
Posts: 131
Edmonton, Alberta, Canada
Its not really the cost of changing the oil or not. Its a tool for work. I just dont like to waste resources. Its good oil that we use in it. And I believe that this engine is pretty easy on oil. No short trips in this truck. When its out it is being used, typically loaded up to the max gvwr. Its just weird that the iolm has not gone off. Ive asked the dealer before to check it and they told me that the system is working properly. But it does not give me a % just says that the oil life is ok.

Re: To change oil or not? PSD 6.7 [Re: advocate] #4717249
04/05/18 01:36 PM
04/05/18 01:36 PM
Joined: Jan 2008
Posts: 10,821
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,821
OH
How many quarts does it take? I bet a lot.

edit: Just looked it up, my guess was 12 but it is 13.1 or 12.4 L. Another reason to keep it in. Not like we're talking 4 qts that a Corolla takes. Changes things a bit.

Last edited by SatinSilver; 04/05/18 01:42 PM.
Re: To change oil or not? PSD 6.7 [Re: SatinSilver] #4717251
04/05/18 01:37 PM
04/05/18 01:37 PM
Joined: Jan 2012
Posts: 131
Edmonton, Alberta, Canada
advocate Offline OP
advocate  Offline OP
Joined: Jan 2012
Posts: 131
Edmonton, Alberta, Canada
12-13 L I believe.

Re: To change oil or not? PSD 6.7 [Re: advocate] #4717257
04/05/18 01:45 PM
04/05/18 01:45 PM
Joined: Mar 2006
Posts: 2,244
Colorado
sw99 Offline
sw99  Offline
Joined: Mar 2006
Posts: 2,244
Colorado
I would change it just due to the time. I would do every two years just to be safe.


2016 Nissan Versa S 1.6L
2018 Subaru Outback 2.5i
2018 Ford F350 6.2L

Re: To change oil or not? PSD 6.7 [Re: advocate] #4717280
04/05/18 02:29 PM
04/05/18 02:29 PM
Joined: Sep 2014
Posts: 2,140
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,140
US-WA
This is a perfect situation for a UOA. Sending a sample will be less than OC, especially . If the oil is serviceable, no speculation will be able to say otherwise. This is a perfect thread to fit AZjeff's signature: Why know when you can guess?

Last edited by Dyusik; 04/05/18 02:30 PM. Reason: spelling

95 Cherokee 190K DELO 10W30, XG8
07 IS250 100K Napa 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 20K VR1 20w50, NG1515
14 RX450h 33k PP MIX, NG7047
Re: To change oil or not? PSD 6.7 [Re: Dyusik] #4717316
04/05/18 03:23 PM
04/05/18 03:23 PM
Joined: Aug 2012
Posts: 447
North Carolina
Urshurak776 Offline
Urshurak776  Offline
Joined: Aug 2012
Posts: 447
North Carolina
Originally Posted By: Dyusik
This is a perfect situation for a UOA. Sending a sample will be less than OC, especially . If the oil is serviceable, no speculation will be able to say otherwise. This is a perfect thread to fit AZjeff's signature: Why know when you can guess?


This. Only way to know for sure.


2012 Hyundai Santa Fe, 130,000 miles, Havoline Pro DS Full Syn 5W-20, Auto7 Filter.
2014 Kia Rio, 80,000 miles, Havoline Pro DS Syn 5W-30, WIX Filter
Re: To change oil or not? PSD 6.7 [Re: advocate] #4717374
04/05/18 04:20 PM
04/05/18 04:20 PM
Joined: Jan 2015
Posts: 97
Charles City, Iowa
rideahorse Offline
rideahorse  Offline
Joined: Jan 2015
Posts: 97
Charles City, Iowa
Too most of the people on here it is a sin to ever change your oil. Just run it till the engine drops and go buy a new truck. Then you get to brag about how you ran the oil for 10 years. Also when you trade in a vehicle brag to them how you only changed the oil once in the life of the car and see if that impresses the dealer. I bet he gives you $5,000 more for trade in with that statement. Let me tell you this. YOU are the one that is going to pay the bill on this if anything goes wrong. Nobody on this forum is. Tell the warranty guy how you have not changed the oil in 5 years and then ask if he going warranty it because some guys on this site said you didn't have to.

Re: To change oil or not? PSD 6.7 [Re: advocate] #4717413
04/05/18 05:01 PM
04/05/18 05:01 PM
Joined: Jul 2007
Posts: 963
SACRAMENTO, CA
rrounds Offline
rrounds  Offline
Joined: Jul 2007
Posts: 963
SACRAMENTO, CA
Pull some oil and get a UOA. Cheap and it will tell you if its good to run longer.

ROD


'06 S2000
'00 SSEi sold at 252k miles
'08 Ford F53 V10
'13 Jeep Sahara 2 door
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