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Dry start ? how often do you need to start your car

i Bought a used AT with 9k miles (dang with that money + 1k i should get a brand new MT ). After 6 months it got 9500 miles .

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Old 07-21-2014, 03:11 AM   #1 (permalink)
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Default Dry start ? how often do you need to start your car

i Bought a used AT with 9k miles (dang with that money + 1k i should get a brand new MT ). After 6 months it got 9500 miles .

Sometimes i leave it for 2 weeks just because i always thought the less you start the engine, the longer and newer the car look. Recently i read this
Quote:
by DEpointfive0
If you're running any sort of synthetic, you can leave it in the engine for well over a year.
The issue I think you'll have with THAT low of mileage is you'll have a LOT of dry starts, meaning you'll start the car, and since you haven't started the car in let's say a week, all your oil will be in the bottom of the pan. And your valves/camshafts will run metal to metal without any lubrication.

On newly installed engines Nissan recommends you forcefully pump one quart of oil into the filling hole, then turn the car on ASAP.

Some of us are psychotic , and crank our car every day regardless of if we drive it that day. At the last place I lived we had valet service and I paid one of the valets to start my car every day while I was on vacation.
There is a guy recommend me to use 5w-40, i dont know what is it for. I always heard folk about leaving car too long make battery dead (trust me that battery is only 150 bucks , it worth nothing). This month i start the car everyday since i discover that fact. Is it neccesary to start everyday, is the oil that bad that after a day they all go to the bottom ?

Quote:
i just scared that if leave more than 2-3 days-week-2 week, the oil will mostly go down to bottom(even that thin oil have enough time to go away) while of you start every day, the more oil still stick to cylinder. yet reduce the risk of metal-to-metal

The new car at dealer ship dry start for sometimes, but 4-5 dry start then it is picked up is acceptable. On my case, 5 months x 3 times a months=15 times. plus in the next 1-2 years cause i keep car as a collection

Last edited by dkinghl; 07-21-2014 at 01:41 PM.
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Old 07-21-2014, 06:18 AM   #2 (permalink)
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Just start the car once a week and get it to warm up.



Or, you know, drive it.
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Old 07-21-2014, 06:46 AM   #3 (permalink)
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Originally Posted by Dirk McGurck View Post
Just start the car once a week and get it to warm up.



Or, you know, drive it.
Only if you drive it. Starting a car just to start it is bad. Condensation builds within everything. You have to drive long enough and hard enough to burn off the water or else your oil will become contaminated and things will rust out. That's why you do long term storage instead of just running it here and there.
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Old 07-21-2014, 06:52 AM   #4 (permalink)
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Quote:
Originally Posted by Dirk McGurck View Post
Just start the car once a week and get it to warm up.



Or, you know, drive it.
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Old 07-21-2014, 07:23 AM   #5 (permalink)
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Yeah once in awhile is fine no need to be OCD about it.
It wont hurt either if you crank it daily your just wasting gas and fuming your garage with Co2. Not good if you have kids around better yet drive it around few miles.
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Old 07-21-2014, 07:31 AM   #6 (permalink)
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Start the engine every 2-4 weeks and let run until fully warmed up. Do not use 5W40 oil, it is too thick. If you are worried about the battery, get a tender.
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Old 07-21-2014, 07:59 AM   #7 (permalink)
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Every time you start your car there is wear. When you start your car, regardless of what type of oil you use, you only have boundary lubrication i.e. metal-to-metal contact between the bearings and the journals. The very thin oil before start up isn't enough to prevent this wear, even though it's very, very minimal but it's still wear. Once the engine is started and pressure has built up in the first few seconds, you have hydrodynamic lubrication i.e. no metal-to-metal contact between the journals and bearings. So, you decide how often you want to start your car.
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Old 07-21-2014, 08:05 AM   #8 (permalink)
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Ya think they worry about this at a car dealership? Car is started to move in the lots or for test drives after that sit for weeks.
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Old 07-21-2014, 08:19 AM   #9 (permalink)
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I would think your putting more wear on your engine (as stated above) every time you start your engine. I do not see the need to start the car when you don't plan on using it. I'm getting up there in years and keep most of my cars for 10 plus years. My summer cars sit all winter and I don't start them until the day I plan on driving them, never had a problem.
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Old 07-21-2014, 09:04 AM   #10 (permalink)
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Originally Posted by Shotta View Post
I would think your putting more wear on your engine (as stated above) every time you start your engine. I do not see the need to start the car when you don't plan on using it. I'm getting up there in years and keep most of my cars for 10 plus years. My summer cars sit all winter and I don't start them until the day I plan on driving them, never had a problem.
I wouldn't start a car just to start it either.

I don't understand why the OP just isn't driving his car
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Old 07-21-2014, 09:04 AM   #11 (permalink)
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During my Z's hibernation last winter I started her up about once a month. Everything worked out fine. Started every time and battery never died.
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Old 07-21-2014, 09:04 AM   #12 (permalink)
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I think with the current technology with engines this wear and tear issue upon starting is thing of the past. If there is any at all...the engine is solid!
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Old 07-21-2014, 09:15 AM   #13 (permalink)
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Heh. The latest oil-related thing to obsess about based on old, no-longer-applicable lubrication technology and engine design/manufacturing.

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Old 07-21-2014, 09:31 AM   #14 (permalink)
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Originally Posted by Zoren 370 View Post
I think with the current technology with engines this wear and tear issue upon starting is thing of the past. If there is any at all...the engine is solid!
With modern engines, I don't think frequent (several times per day) starts are a problem but every start does create a little extra wear & tear. IMNSHO not something to worry about but not exactly a thing of the past either. I'd put it in the same category as downshifting the 7AT in manual mode - as long as you are reasonable about it, the amount of damage is minimal and can be ignored. I'd be more concerned with wear & tear on the starter and battery but, once again, not a big deal unless you are starting the engine a lot.

My biggest worry would be oil draining from lubed parts due to infrequent running during storage. Going by what I've seen/read, there will be a sufficient film of oil for 2-3 months or more. I'd still start my stored vehicle every 2-4 weeks or so if it were me. Starting it every day is overkill.
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Old 07-21-2014, 09:31 AM   #15 (permalink)
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Hey I even know someone who invented an engine that runs without oil and is currently being tested by one company. I'll try to find the link but its called " detonation" kind of stuff.
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