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Proper oil for warranty #4656993
02/05/18 02:42 PM
02/05/18 02:42 PM
Joined: Feb 2008
Posts: 1,058
MA.
Camprunner Offline OP
Camprunner  Offline OP
Joined: Feb 2008
Posts: 1,058
MA.
Let's say you buy a new car/truck and it calls for 5w30 and you decide to run 10w30 summer and 0w30 in the winter. Now let's say your new ride has a connecting rod failure or some other big engine failure but not oil related. Can or will a car company not cover your repair if the oil is not a 5w30 in this case you were running a 10w30? Or if the oil is in the recommended 30 weight range you are ok?

Re: Proper oil for warranty [Re: Camprunner] #4656997
02/05/18 02:45 PM
02/05/18 02:45 PM
Joined: Nov 2013
Posts: 864
Central Coast California
RedOakRanch Offline
RedOakRanch  Offline
Joined: Nov 2013
Posts: 864
Central Coast California
They only look at 2 things, did you have oil in the engine, were the changes documented. Half the dealers don't use the recommended oil themselves.


1994 Ford Crown Vic 207k-Frankenbrew 0w20,30,40!
2005 Chevy 1500 Crewcab 4X4 180k-BC 0w30 $2/qt
2016 Outback 2.5 Limited 60k-shop brand?
Re: Proper oil for warranty [Re: Camprunner] #4657000
02/05/18 02:48 PM
02/05/18 02:48 PM
Joined: Jul 2005
Posts: 30,418
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,418
NY
There is always the chance they can deny a warranty claim. Some swear as long as the crankcase is filled to the proper level, and the oil doesn't look like tar you're fine. I have seen warranty claims denied first hand while working at dealerships for various reasons. Having said that, it depends is the only accurate answer I can give. Keep an accurate log, and a stack of invoices for the oil and filters used and hope for the best if you have a problem. Or better yet just run the approved 5W30 oil year round, it is a 30 grade at operating temps and will be fine.


God Bless Our Troops

Re: Proper oil for warranty [Re: Camprunner] #4657055
02/05/18 03:39 PM
02/05/18 03:39 PM
Joined: Dec 2017
Posts: 2,313
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,313
SE British Columbia, Canada
GM is pretty serious that you use Dexos approved oil but I have not heard any anecdotal stories of them denying coverage because of the improper weight etc. Depending on the vehicle and problem they may have a different attitude. GM would not look kindly on running 10-30 in their V-8's because they did a lot of work to prevent problems in the lifters for their AFM systems.

SF


Last edited by Snagglefoot; 02/05/18 03:41 PM.

If you want the job done right......do it yourself.
Re: Proper oil for warranty [Re: Snagglefoot] #4657059
02/05/18 03:45 PM
02/05/18 03:45 PM
Joined: Dec 2017
Posts: 2,313
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,313
SE British Columbia, Canada
Originally Posted By: Snagglefoot
GM is pretty serious that you use Dexos approved oil but I have not heard any anecdotal stories of them denying coverage because of the improper weight etc. Depending on the vehicle and problem they may have a different attitude. GM would not look kindly on running 10-30 in their V-8's because they did a lot of work to prevent problems in the lifters for their AFM systems. How confident are you on running the incorrect oil? I understand wanting to run a 0-xx, but it escapes me why someone would want to run a 10-xx since very few manufacturers have spec'd 10-xx in the last 20 years. (I've rehashed this several times. There are exceptions but you can count them on one hand.)

SF



If you want the job done right......do it yourself.
Re: Proper oil for warranty [Re: Camprunner] #4657155
02/05/18 04:59 PM
02/05/18 04:59 PM
Joined: Oct 2009
Posts: 3,209
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,209
Wet side WA
Originally Posted By: Camprunner
Let's say you buy a new car/truck and it calls for 5w30 and you decide to run 10w30 summer and 0w30 in the winter. Now let's say your new ride has a connecting rod failure or some other big engine failure but not oil related. Can or will a car company not cover your repair if the oil is not a 5w30 in this case you were running a 10w30? Or if the oil is in the recommended 30 weight range you are ok?


Your dealer will never figure it out bet money on it!


2004 Corolla 124705
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74277
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18
Re: Proper oil for warranty [Re: Camprunner] #4657280
02/05/18 07:07 PM
02/05/18 07:07 PM
Joined: Aug 2002
Posts: 14,424
Silicon Valley
PandaBear Offline
PandaBear  Offline
Joined: Aug 2002
Posts: 14,424
Silicon Valley
Originally Posted By: Camprunner
Let's say you buy a new car/truck and it calls for 5w30 and you decide to run 10w30 summer and 0w30 in the winter. Now let's say your new ride has a connecting rod failure or some other big engine failure but not oil related. Can or will a car company not cover your repair if the oil is not a 5w30 in this case you were running a 10w30? Or if the oil is in the recommended 30 weight range you are ok?


If it is only visc difference, you really can't tell because they shear out of grade during use.

Now if you use the wrong kind of oil and you get sludge, then they may decline warranty assuming you didn't change oil.


"You keep asking questions PandaBear and you'll end up a vegetarian like my wife" - Camu Mahubah
Re: Proper oil for warranty [Re: Camprunner] #4657286
02/05/18 07:17 PM
02/05/18 07:17 PM
Joined: Oct 2014
Posts: 737
Pa, USA
NH73 Offline
NH73  Offline
Joined: Oct 2014
Posts: 737
Pa, USA
Stick to the 5w30. Mobil 1 AFE 0w30 claims they can cover for 5w30 and 10w30, so you could use that in the winter.


2017 Toyota RAV4 Hybrid
2004 Ford Explorer Sport Trac
2012 Gravely ZT XL 48 w/ Kawasaki FR730
Re: Proper oil for warranty [Re: Camprunner] #4657352
02/05/18 08:22 PM
02/05/18 08:22 PM
Joined: Apr 2015
Posts: 279
Georgia
Charlie2015 Offline
Charlie2015  Offline
Joined: Apr 2015
Posts: 279
Georgia
If you want your warranty to stay intact, then play by the manufacturer's rules about oil specs and service intervals. The main time I see dealers asking specifically for oil change receipts is when the motor looks like its sludged or abused.


1998 Honda Accord EX 2.3L Auto
2009 Scion TC Manual

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