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#3270682 - 02/04/14 07:51 PM Oil choice short trips? TBN & go up a grade?
TrevorS Offline


Registered: 07/14/13
Posts: 1281
Loc: California
Is the best option when expecting predominantly short trips an oil with the highest TBN and possibly going up a grade?

I know a periodic highway trip makes sense as well but apart from that, what makes sense? Are there any other characteristics in oil that are better for short trips, apart from high VI?

Also, what is the mechanism by which fuel dilution / moisture is damaging?

Is it damaging to the engine all the time or only once it wears out the oils additives?

If I burnt it off weekly then is that better for the engine than burning it off monthly?

I presume a weekly burn off means the oil will last longer than a monthly burnoff.

Thanks

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#3270695 - 02/04/14 08:02 PM Re: Oil choice short trips? TBN & go up a grade? [Re: TrevorS]
Subdued Offline


Registered: 10/06/13
Posts: 248
Loc: Youngstown, NY
there is no reason to go up a grade. Non at all.

A high TBN oil could help, but there's plenty of proof that TBN isn't the end-all solution.

As always, short tripping means shorter OCI, use the severe service schedule.

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#3270724 - 02/04/14 08:31 PM Re: Oil choice short trips? TBN & go up a grade? [Re: TrevorS]
901Memphis Offline


Registered: 08/14/10
Posts: 4834
Loc: Northern Kentucky
You would just be better off changing more often and going down and grade depending on what engine it is.


All oil is too thick for proper lubrication at temperatures below your oem thermostat temperature. If you are specd for 5w30 and you only take a one mile trip you would be better off with a 0w20.

Full dilution isn't always going to happen you should verify with all flash point test on a uoa for your specific application it may not be an issue at all.

Also you can stay in grade by going with a lighter 5w30 like Pennzoil Platinum if you are talking about 5w30 applications.
_________________________
1999 Ford Taurus 145k (Vulcan v6) - Mobil 1 High Mileage 5w30 | FL400S
2002 Buick Century 102k - PU 5w30 / Fram Ultra XG 3980 / Filter mag

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#3270730 - 02/04/14 08:44 PM Re: Oil choice short trips? TBN & go up a grade? [Re: TrevorS]
rw19 Offline


Registered: 12/30/13
Posts: 135
Loc: British Columbia
I would go to a thinner oil most damage happens @ start up put a 0w 20 if your car calls for a 5w 20 and 0w 30 for a 5w 30

Most zero grade oils are better as they contain a very high pao percentage
_________________________
2004 Lincoln Navigator 5.4L M1 AFE 0w 20 M-210 80,000km
2014 Lexus IS 350 AWD Dealer Fill 2000km
2012 CTS-V 6.2L V8 M1 0w 40 K&N PS-1017 13,200km


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#3270734 - 02/04/14 08:48 PM Re: Oil choice short trips? TBN & go up a grade? [Re: TrevorS]
jamesyarbrough Offline


Registered: 01/17/14
Posts: 295
Loc: Denison TX
Just use a cheap oil that meets spec and recommended grade for the car and change at 3k.

Going up a grade is just going to increase wear on a short tripper that never gets up to temp.

My explorer is a soccer mom car and does nothing but short trips with a very rare 50 mile road trip. I use whatever (any sopus or mobil product i think is a good deal) in it and change it when it looks dark. Thats usually 3500 miles or so if most of the mileage was in winter months and over 5000 if it was mostly summer months.
_________________________
2006 F-150 M1 0w40 & Bosch
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1986 Lincoln SA200 T6 5w40 & Wix

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#3270746 - 02/04/14 08:57 PM Re: Oil choice short trips? TBN & go up a grade? [Re: jamesyarbrough]
Doog Offline


Registered: 10/24/11
Posts: 3362
Loc: Ohio
I use a good synthetic and change every 5000. No problems yet.
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#3270807 - 02/04/14 09:50 PM Re: Oil choice short trips? TBN & go up a grade? [Re: Doog]
147_Grain Offline


Registered: 03/11/13
Posts: 1260
Loc: USA
Originally Posted By: Doog
I use a good synthetic and change every 5000. No problems yet.


I agree. +1

A quality 20-weight synthetic oil and filter change twice per year with all the short trips.
_________________________
2013 Subaru Outback Limited H6 AWD
2013 Toyota Corolla LE
2012 Toyota Corolla LE
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#3270852 - 02/04/14 10:29 PM Re: Oil choice short trips? TBN & go up a grade? [Re: TrevorS]
JHZR2 Offline



Registered: 12/14/02
Posts: 33223
Loc: New Jersey
There is LOTS of speculation on this. ID recommend doing a UOA that shows TBN and moisture. Because we want worst case, take the sample after a bunch of short trips and without getting it up to temp, so any moisture or fuel that is going to be there is.

You may well see nothing, making the whole thing moot. We found that running a good syn oil, we could do regular OCIs despite a severe service operation with LOTS of short trips as the main use.

Remember that driving off moisture is a time at temperature thing.

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#3271837 - 02/05/14 08:25 PM Re: Oil choice short trips? TBN & go up a grade? [Re: TrevorS]
901Memphis Offline


Registered: 08/14/10
Posts: 4834
Loc: Northern Kentucky
Look at fuelly website you can see user reported averages. Just remember that the skewed ones are obviously lying, like a hemi getting 50 mpg. The averages are useful though if they are a popular vehicle.
_________________________
1999 Ford Taurus 145k (Vulcan v6) - Mobil 1 High Mileage 5w30 | FL400S
2002 Buick Century 102k - PU 5w30 / Fram Ultra XG 3980 / Filter mag

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