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Using thicker oil in new vehicles #4115245 06/04/16 06:14 PM
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OneEyeJack Offline OP
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Just talked with the owner of a disabled passenger transportation company. He uses Ford vans rigged up with wheel chair lifts, seats and other equipment needed for the job.

These vans are spec'd for 5w-20 oil but on the first oil change he switches them to Mobil 1 15w-50 oil and Mobil 1 oil filters and changes the oil based on experience with UOA's and past maintenance experience, usually at 10-12K miles with the filter done every other change. His vans usually see between 60 to 75K miles a year driven 2 shifts a day, 7 days a week. He runs them until maintenance expenses start to rise, usually at 400 to 600K miles. He does his own maintenance for most stuff and maintains a yard with crashed or worn out vans for parts and does maintenance for a couple of other operations that use these same vans in their business.

He previously used 5w-20 and it worked well for the first 100K miles or so, but after that wear increased to the point where he stated looking for a solution. This increased wear problem was not experienced when he switched to the higher viscosity oil of the same brand of Mobil 1 oil right from the start.

I know this is not typical passenger car wear and tear but I though it was at least interesting. Because these vehicles are driven by drivers often times in a bit of a hurry to get to calls with engines left idling to keep the a/c or heater going he said he could not pin down any fuel mileage differences. He also stated that he's never used "high mileage" oil. He knows the theory but has never felt the need to try it.

He said his next move to improve maintenance is going to be trying changing the oil based on the amount of fuel used instead of mileage. He thinks that idle time and terrible mileage in rush hour traffic should be considered when it comes time to change the oil. Since all gasoline is purchased from dedicated credit cards and often from the gas station down the street this will be an easy scheme to implement.

Re: Using thicker oil in new vehicles [Re: OneEyeJack] #4115256 06/04/16 06:26 PM
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CT8 Offline
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There is a misconception about thin oil on BITOG.

Re: Using thicker oil in new vehicles [Re: OneEyeJack] #4115262 06/04/16 06:31 PM
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blupupher Offline
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Just hook up an hour meter to the engine and change based on that vs mileage.


2018 Santa Fe: PP 10W-30/OEM/5k
2018 Soul: Mobil Super 5W-20/OEM/5k
2012 xB: M1 EP 0W-20/CQ Blue/5k
2002 F150: Magnatec 5W-20/Bosch D+/1yr
1994 VT1100: Peak 15W-40/Bosch D+/1yr
Re: Using thicker oil in new vehicles [Re: blupupher] #4115270 06/04/16 06:39 PM
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Panzerman Offline
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Originally Posted By: blupupher
Just hook up an hour meter to the engine and change based on that vs mileage.


Why? This method is working well. 400-600k miles, definitely working. I see the same thing. I said about the guy at work with a 05 Ford F-150 over 300 k on 20w50. That truck idles all day too. I think this guy found a niche that works for him. I think oil filter every other oil change is insane with that severe service. I find no fault in heavy oil or changing his current intervals. You have to realize this is a bussiness and you won't to look at cost. Less oil changes, less money out.



2006 Dodge Ram 2500 Hemi 4x4
2016 Dodge Challenger Scat Pack
Re: Using thicker oil in new vehicles [Re: OneEyeJack] #4115279 06/04/16 06:49 PM
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fdcg27 Offline
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His experience doesn't mirror that of other fleet operators of vehicles using the Ford Mod engine.
Most use 5W-20 from cradle to grave with no problems and most don't bother with UOAs, VOAs or any other As.
They just run the engines on 5W-20, change the oil as recommended and also rack up 400K-600K in service.
My personal best ride was in a Crown Vic cab, an actual new delivery cab, with 625K on its original 4.6, all on 5W-20 conventional.
The matured generations of these engines seem to run about forever without regard to oil or grade used.


18 Accord Hybrid 10K HGMO 0W-20
17 Forester 24K VME 0W-20
12 Accord LX 115K SSO 0W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Using thicker oil in new vehicles [Re: fdcg27] #4115294 06/04/16 07:12 PM
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CT8 Offline
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Originally Posted By: fdcg27
His experience doesn't mirror that of other fleet operators of vehicles using the Ford Mod engine.
Most use 5W-20 from cradle to grave with no problems and most don't bother with UOAs, VOAs or any other As.
They just run the engines on 5W-20, change the oil as recommended and also rack up 400K-600K in service.
My personal best ride was in a Crown Vic cab, an actual new delivery cab, with 625K on its original 4.6, all on 5W-20 conventional.
The matured generations of these engines seem to run about forever without regard to oil or grade used.
This is BITOG every one on board knows engines won't live over 53,000 miles with out running syn oil at 5,000 mile oil change intervals and a uoa every 2,500 miles to see the trending. grin grin grin

Re: Using thicker oil in new vehicles [Re: fdcg27] #4115302 06/04/16 07:21 PM
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Y_K Offline
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Doesn't mirror my personal experience on Ford mod v8 in taxi or towncar application: haven't seen a single on 20 oil past 300k with no smoke. Similar story on Siennas: none survived past 250k on the thin oil (M1 or Amsoil). How can one stand all that racket the 5W-20 makes in the Ford mod v8? When you drive anything professionally for that many miles you hear every tiny hickup, let alone the unbearable bang the MC 5W-20 would make on the warranty fills. We would Mytivac it immediately..

Re: Using thicker oil in new vehicles [Re: OneEyeJack] #4115303 06/04/16 07:21 PM
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Ethan1 Offline
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The Modular engine family is legendarily reliable and very notably NOT picky about viscosity. There's an interesting analysis on the Motor Oil University section of this site.

Re: Using thicker oil in new vehicles [Re: OneEyeJack] #4115316 06/04/16 07:32 PM
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demarpaint Offline
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By the title I thought he dumped the 5W20 for a 30 grade. Very interesting.


God Bless Our Troops

Re: Using thicker oil in new vehicles [Re: CT8] #4115352 06/04/16 08:03 PM
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CKN Offline
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Originally Posted By: CT8
There is a misconception about thin oil on BITOG.



Among many other things......

Re: Using thicker oil in new vehicles [Re: Panzerman] #4115363 06/04/16 08:14 PM
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blupupher Offline
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Originally Posted By: Panzerman
Originally Posted By: blupupher
Just hook up an hour meter to the engine and change based on that vs mileage.


Why? This method is working well. ...

because
Quote:
...He said his next move to improve maintenance is going to be trying changing the oil based on the amount of fuel used instead of mileage. He thinks that idle time and terrible mileage in rush hour traffic should be considered when it comes time to change the oil...

Fuel used is very similar time engine running (when compared to just miles total driven), and easier to keep track of. A $10 hour meter on each vehicle is a lot easier to check than going through fill up records IMO.


2018 Santa Fe: PP 10W-30/OEM/5k
2018 Soul: Mobil Super 5W-20/OEM/5k
2012 xB: M1 EP 0W-20/CQ Blue/5k
2002 F150: Magnatec 5W-20/Bosch D+/1yr
1994 VT1100: Peak 15W-40/Bosch D+/1yr
Re: Using thicker oil in new vehicles [Re: OneEyeJack] #4115368 06/04/16 08:19 PM
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SR5 Offline
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Thanks for sharing OneEyeJack


---------------------------------------------------------------------------------
Castrol Edge 10W30 A5/B5 + Wesfil-Cooper Z154
Re: Using thicker oil in new vehicles [Re: OneEyeJack] #4115397 06/04/16 09:10 PM
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klt1986 Offline
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I'm still running a 2011 Crown Vic PI as my department issued car. It idles a lot and gets run pretty hard at times. Our shop changes the oil every 3,000 miles and runs bulk Shell 15W-40 in them. We usually auction the cars off at around 150k but the engines are still running pretty strong. The transmissions and rear ends can be a different story though.


Last edited by klt1986; 06/04/16 09:12 PM.
Re: Using thicker oil in new vehicles [Re: klt1986] #4115405 06/04/16 09:28 PM
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69GTX Offline
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I'm not surprised that in SoCal for taxi-like service, that a M1 15W-50 works.


----------------

2001 Lincoln Cont 4.6L DOHC/ 50K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Using thicker oil in new vehicles [Re: OneEyeJack] #4115473 06/04/16 11:52 PM
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This did not mirror my experience (increased wear after 100K) either, I UOA'ed every OCI and did not see a problem using xW-20 oils. I towed 8-9000 pounds in heat up to 117F for 45% of the 160K miles I put on my 2010. I would consider this harsher duty than a vehicle that is constantly ran.


2019 Jeep Rubicon Wrangler Unlimited 3.6L V6 [OEM + Factory Fill]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum Euro 0W-40 & Mann filter]
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