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#4656993 - 02/05/18 01:42 PM Proper oil for warranty
Camprunner Offline


Registered: 02/19/08
Posts: 1034
Loc: 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?

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#4656997 - 02/05/18 01:45 PM Re: Proper oil for warranty [Re: Camprunner]
RedOakRanch Offline


Registered: 11/10/13
Posts: 846
Loc: 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 206k-Frankenbrew 0w20,30,40!
2005 Chevy 1500 Crewcab 4X4 178k-BC 0w30 $2/qt
2016 Outback 2.5 Limited 56k-M1 EP 0w20 $2/qt

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#4657000 - 02/05/18 01:48 PM Re: Proper oil for warranty [Re: Camprunner]
demarpaint Offline


Registered: 07/03/05
Posts: 29758
Loc: 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


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#4657055 - 02/05/18 02:39 PM Re: Proper oil for warranty [Re: Camprunner]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1713
Loc: Alberta
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



Edited by Snagglefoot (02/05/18 02:41 PM)

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#4657059 - 02/05/18 02:45 PM Re: Proper oil for warranty [Re: Snagglefoot]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1713
Loc: Alberta
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


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#4657155 - 02/05/18 03:59 PM Re: Proper oil for warranty [Re: Camprunner]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2740
Loc: 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 Toyota Corolla 121682
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4657280 - 02/05/18 06:07 PM Re: Proper oil for warranty [Re: Camprunner]
PandaBear Offline


Registered: 08/05/02
Posts: 14215
Loc: 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

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#4657286 - 02/05/18 06:17 PM Re: Proper oil for warranty [Re: Camprunner]
NH73 Offline


Registered: 10/31/14
Posts: 699
Loc: 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

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#4657352 - 02/05/18 07:22 PM Re: Proper oil for warranty [Re: Camprunner]
Charlie2015 Offline


Registered: 04/24/15
Posts: 236
Loc: 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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