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Old 05-19-2013, 12:20 PM
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Driver..short trips

Hi
I just saw a respected auto mechanic say ...the worst thing you can do to a car is drive it on short trips once or twice a week. Is this BS?

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Old 05-19-2013, 01:15 PM
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Originally Posted by Bobs36ford View Post
Hi
I just saw a respected auto mechanic say ...the worst thing you can do to a car is drive it on short trips once or twice a week. Is this BS?
The worst thing you can do to a car is to let it sit and not drive it at all.

The SECOND worst thing is to only drive it infrequently on short trips. The oil doesn't get hot enough to boil out the water condensation. Same for the exhaust. Short trips around town usually mean more use of the brakes, etc, etc.
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Old 05-19-2013, 03:04 PM
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change the oil more often,no big deal.
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Old 05-19-2013, 03:31 PM
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Originally Posted by Bobs36ford View Post
Hi
I just saw a respected auto mechanic say ...the worst thing you can do to a car is drive it on short trips once or twice a week. Is this BS?
The motor requires heat to burn off the by-products of combustion such as acids. If you don't run the motor long enough to do this, as Vinnie says, you will have to change oil more often. Any of you guys who think you're hittin' a hot lick by running a 160 thermostat are just fooling yourselves. Too cold to burn off byproducts. Change to a 195/205.
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Old 05-19-2013, 04:07 PM
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The motor requires heat to burn off the by-products of combustion such as acids. If you don't run the motor long enough to do this, as Vinnie says, you will have to change oil more often. Any of you guys who think you're hittin' a hot lick by running a 160 thermostat are just fooling yourselves. Too cold to burn off byproducts. Change to a 195/205.
Just started pulling apart a Ford 2.0 six cylinder engine. Owner did regular oil changes and car was well maintained. She drove it four miles to work, every day.

The insides of the engine is packed full of hard wax deposits and what looks like oily black core sand. All deposits from short run cycles. Engine cooked the crank and rods from oil pump screen plugged with deposits.
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Old 05-19-2013, 04:09 PM
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Agreed with the letting it sit is the worst. This sucks if you want to keep the mileage low. Even though my truck is no where near of any value she is to me. Shes only labeled as under construction but licensed as daily driver as sometimes I do have to drive her to work. No matter what I drive her once every two weeks for trips longer then 2 hours to keep everything as straight as possible. This becomes a challenge because most of everything mechanically is only fitted on the truck as testing to find the best suitable outcomes. In the 5 years of owning her ive only put 15000 miles on her just to keep my options open if I decide not to do a full swap only a rebuild. I need to get another daily lol.
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Old 05-20-2013, 09:39 AM
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For what I am doing time sitting means nothing. Length of the travel means nothing. Total miles/hours that makes a difference.

Look in the manual see what the leak down limit spec is for a clt. Test cranking compression. Get a oil pressure reading on a gauge . Oil psi is your engine life indicator. Look in the manual for limit of oil consumption during operation, if it requires some oil no and then when fueling . The combustion engine is one tuff bastard .

I don't race or beat on my cars. They are drivers or haulers.
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Old 05-20-2013, 09:45 AM
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Originally Posted by spinn View Post
For what I am doing time sitting means nothing. Length of the travel means nothing. Total miles/hours that makes a difference.

Look in the manual see what the leak down limit spec is for a clt. Test cranking compression. Get a oil pressure reading on a gauge . Oil psi is your engine life indicator. Look in the manual for limit of oil consumption during operation, if it requires some oil no and then when fueling . The combustion engine is one tuff bastard .

I don't race or beat on my cars. They are drivers or haulers.
don't matter, starting is the worse thing you can EVER do to an engine..
short trips, tend to equal more times started, per mile/hour of use..
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Old 05-20-2013, 09:48 AM
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Starting/cranking is a normal operation and the materials are designed to allow frequent starts.

After break in. Crank away.
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Old 05-20-2013, 09:50 AM
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[QUOTE=gearheadslife;1677063]don't matter, starting is the worse thing you can EVER do to an engine..QUOTE]

that is NOT the worse thing you can do to a engine.

Be smart , shu............................................... .................................

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Old 05-20-2013, 10:00 AM
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Starting/cranking is a normal operation and the materials are designed to allow frequent starts.

After break in. Crank away.

cranking, zero oil pressure, oil drain back, or do you think gravity doesn't work on oil on the cyl walls, the cam etc

but carry on..
"after break in, crank away," priceless..
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Old 05-20-2013, 10:02 AM
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Joe, that is why oil has hygroscopic additives.
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Old 05-20-2013, 10:04 AM
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cranking, zero oil pressure, oil drain back, or do you think gravity doesn't work on oil on the cyl walls, the cam etc

but carry on..
"after break in, crank away," priceless..
Your a piece of work. You take medication for your paranoia?

There will be oil on them walls for a long time. Gravity is not a degreaser. You know nothing and proved it twice in this thread.
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Old 05-20-2013, 10:06 AM
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This forum deserves better.
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Old 05-20-2013, 10:09 AM
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Your a piece of work. You take medication for your paranoia?

There will be oil on them walls for a long time. Gravity is not a degreaser. You know nothing and proved it twice in this thread.

yup, and neither do all the diesel engine makers, or anyone with an engineering back ground..

you win..

let me ask this, if oil film is there under pressure, while running, where does the wear come from and WHEN..
ask a few engineers and then post back.. hint it's dry starts, oil pumps don't build psi instantly..
but again carry on.. maybe you can come back with another bash..
I'll be waiting
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