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#4717123 - 04/05/18 11:09 AM To change oil or not? PSD 6.7
advocate Offline


Registered: 01/17/12
Posts: 117
Loc: 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. Whatís 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 thatís 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. Itís out of warranty not based on time alone. Itís one of those things - itís 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.

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#4717140 - 04/05/18 11:20 AM Re: To change oil or not? PSD 6.7 [Re: advocate]
Dyusik Offline


Registered: 09/26/14
Posts: 2013
Loc: 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 97K FB ?w??,FULL
04 YZF-R1 19K DELO 15w40,XG7317
99 HD XL1200S 18K VR1 20w50,1515
14 RX450h 30k PP 0w20,NAPAG

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#4717156 - 04/05/18 11:35 AM Re: To change oil or not? PSD 6.7 [Re: advocate]
Reddy45 Offline


Registered: 08/15/08
Posts: 3028
Loc: USA
If you have never short tripped it then the oil is probably still good.

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#4717193 - 04/05/18 12:23 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
tcp71 Offline


Registered: 08/12/13
Posts: 291
Loc: 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.


Edited by tcp71 (04/05/18 12:34 PM)

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#4717203 - 04/05/18 12:34 PM Re: To change oil or not? PSD 6.7 [Re: tcp71]
Drosselmier Offline


Registered: 03/12/15
Posts: 186
Loc: Ontario Niagara region
To the OP. Change it. Oil is cheap compared to engines. Helps you to sleep better.

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#4717227 - 04/05/18 01:05 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
A_Harman Offline


Registered: 10/01/10
Posts: 6950
Loc: 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

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#4717230 - 04/05/18 01:10 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
FermeLaPorte Offline


Registered: 07/25/17
Posts: 509
Loc: 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.

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#4717248 - 04/05/18 01:33 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
advocate Offline


Registered: 01/17/12
Posts: 117
Loc: Edmonton, Alberta, Canada
Itís not really the cost of changing the oil or not. Itís a tool for work. I just donít like to waste resources. Itís 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 itís out it is being used, typically loaded up to the max gvwr. Itís just weird that the iolm has not gone off. Iíve 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 ďokĒ.

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#4717249 - 04/05/18 01:36 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
SatinSilver Offline


Registered: 01/24/08
Posts: 10341
Loc: 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.


Edited by SatinSilver (04/05/18 01:42 PM)

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#4717251 - 04/05/18 01:37 PM Re: To change oil or not? PSD 6.7 [Re: SatinSilver]
advocate Offline


Registered: 01/17/12
Posts: 117
Loc: Edmonton, Alberta, Canada
12-13 L I believe.

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#4717257 - 04/05/18 01:45 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
sw99 Offline


Registered: 03/22/06
Posts: 2147
Loc: 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


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#4717280 - 04/05/18 02:29 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
Dyusik Offline


Registered: 09/26/14
Posts: 2013
Loc: 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?


Edited by Dyusik (04/05/18 02:30 PM)
Edit Reason: spelling
_________________________
95 Cherokee 190K DELO 10W30,XG8
07 IS250 97K FB ?w??,FULL
04 YZF-R1 19K DELO 15w40,XG7317
99 HD XL1200S 18K VR1 20w50,1515
14 RX450h 30k PP 0w20,NAPAG

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#4717316 - 04/05/18 03:23 PM Re: To change oil or not? PSD 6.7 [Re: Dyusik]
Urshurak776 Offline


Registered: 08/21/12
Posts: 447
Loc: 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

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#4717374 - 04/05/18 04:20 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
rideahorse Offline


Registered: 01/01/15
Posts: 95
Loc: 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.

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#4717413 - 04/05/18 05:01 PM Re: To change oil or not? PSD 6.7 [Re: advocate]
rrounds Offline


Registered: 07/05/07
Posts: 951
Loc: 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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