Hot answers tagged

41

Engine oil does much more for an engine than lubricate. It provides cooling, cleaning, and a bunch of other chores. You already know engine function is degraded when you run out of oil. Let's see if we can run it down to make more sense for you how it happens. Let's say, for lack of argument, your engine is running with very little to no oil. The engine ...


40

You haven't wrecked the car but you should get the oil down to the appropriate level. If the oil isn't hot, almost any sort of plastic tubing can be used for siphoning. It's easiest to go in via the dip stick. Remember not to use the "suck start" siphoning method as you don't want a mouthful of oil. If you have a long enough piece of tubing, you can ...


19

I would not start an engine that has the oil overfilled by a gallon. You can cause permanent engine damage by significantly overfilling the engine with oil. If the crankshaft and connecting rods are contacting the oil, they will whip air into it and cause it to foam. This happens when the oil level is too high. Foamy oil may still work as a barrier ...


19

Find another way to keep track of your oil changes. For example: put that window sticker in your glove box instead if your driving patterns are consistent, figure out how long it will take you to drive 3000 miles and put a reminder in a Google Calendar. put a notebook and pen in the glove box. When you change the oil, write it down, with date and mileage. ...


17

Look in your owner's manual for the vehicle. It should have a good recommendation on the grade and whether synthetic oil is required. In fact some vehicle mfg. will recommend a brand because that brand meets certain requirements.


16

Many things can (and most certainly will) happen, such as: Engine seizure, pistons stuck in cylinders, broken crankshaft, broken conrods (causing holes in the engine block), damaged camshafts, worn out bearings, etc. So, always use the appropriate oil if you care about your car.


16

If you want to know what to use for your car, follow what your vehicle manufacturer has stated. If you would like to better understand what all the gobble-de-gook means, continue reading --- Oil Originally there was crude oil. Black gold. Texas Tea. As crude oil, it is fairly much useless. It's the distillates which make up the usable parts. Crude oil is ...


13

It's a Diesel, which means that you usually have a high detergent oil in an engine that dumps combustion by-products like soot into the oil as part of its normal operation. Given the age of the vehicle I'm not surprised that the oil has noticeably darkened after 10 miles - one of the older Diesels I owned a while back did that during the time it took to run ...


13

In a word: No. To add more to it: Absolutely Not. There is one huge thing which you have not taken into account. That being carbon which deposits from the air/fuel mixture burning process. Where does it go? Right into the oil (among other places). A small amount of blow by occurs which also forces this mixture down into the crank case. Now you have it in ...


12

In addition to keeping the recommended oil change schedule, here's a quick-and-dirty way to evaluate oil quality. Grab the dip stick and run it through your fingers to get them oily. Spread the oil on your fingers and observe: Transparent, honey-like colour, no visible sediments, nice greasy feeling? You are good to go. Transparent, dark-brown to black, ...


12

Simple answer - no, you can never get rid of ALL of the old oil - and you wouldn't want to, as you need to keep a film of oil over all the moving parts all the time. The small amount of residual oil will mix with the new oil quite happily. Oil flows better when it is warmer (as it gets thinner), so the best way to get as much of the sludge and residue out ...


12

In most engines, when you fill the oil, it drains into a reservoir on the bottom of the engine known as the oil pan. The tube for the dipstick goes right down into this reservoir to measure the level of the oil. The other important item located in this reservoir is the pick-up tube for the oil pump. As long as the pick-up tube for the pump stays under the ...


11

I think Meineke was taking you for a ride (pun intended). Here is my reasoning: If it was leaking as bad as they say (or showed you) it was, you wouldn't have had any oil in your vehicle when you got to their shop. If the car was having the massive oil leaks all over the engine compartment as they showed you, there would have been VOLUMES of smoke from it ...


9

Honestly, I have worked at three different types of places. First, it was aquick lube place in California. These can be good, if they have good management. The bad comes in when you have bad management, and they can "sell" things and not do them. These focus mostly on services they sell, and really glance at all other things. Second, it was a place like ...


9

For OCD you can place a flat pan below the oil drain and lower the front wheels to get the remaining oil out, then jack it up again. Though I would not worry about couple of ounces in your place. Even if your car is level old oil will still remain in the engine (other cavities, thin film, etc.). For example in my engine that takes 4L of fresh oil, 2 ounces ...


9

I suspect that the 15% oil is talking about oil life. Just make sure that you check the oil level and top it off appropriately before taking the trip. Change the oil a quickly as possible once the trip is done.


9

This be what the internet gives me. I have never owned a BMW but I hope this helps. In the picture look for the red arrow and on your car look on the left rear side of the engine.


9

As @dodgethesteamroller stated, there is nothing wrong with reusing the engine oil. There are two caveats and one concern I'd like to mention with this. First, use a clean container to store the oil in while you are doing your engine work. Your normal engine drain pan will probably not give you the cleanliness you are looking for. You DO NOT want to have ...


9

As race fever indicated, many modern cars, and all hybrids, will record how many hours the ICE (internal combustion engine) has been running. It appears the Ford C-max, along with most other hybrids, pass this clock into an 'oil life indicator' (should have called it Oil Indicator of Life, or OIL for short!), which calculates and displays an alert for when ...


8

The first one is usually a much shorter interval, yes. This allows for bedding in, possibly flushing contaminants (I'd be upset if I had metal shavings in my engine when I got it) and allowing minor tolerance differences to be smoothed. Often a different oil type is used for that first period to assist with this process.


8

At least in the United States you are not required to use the dealer for service,parts or repairs to maintain your warranty. You will be required to have the warranty work done at the dealer except in extenuating circumstances,(like the nearest dealer is 150 miles away) but you must still contact them first. If they deny a warranty claim on the basis of non ...


8

Nothing wrong with doing this at all. Just make sure that you keep the oil clean and put back in as much as you take out! Usually you don't think about keeping oil clean as it drains since you're going to dispose of it anyway, so take precautions: use only new or thoroughly cleaned funnels and drain pans, wear clean rubber gloves as you unscrew the drain ...


7

I echo jzd's answer. The car's owner's manual should tell you what you need. To answer some more of your question: numbers like "5W30" are viscosity ratings. They indicate how viscous ("thick") the oil is. Most oils are "multi-viscosity," quoting a range of weights (e.g., 5W30 instead of 30W) to indicate how they behave at different temperatures. The "W" ...


7

Oil changes are a boring job! As Hasen says, a larger size oil catch pan is the only real solution. Before you start, try and estimate the direction of flow. If the drain plug is on the side of the sump (oil pan), the oil will begin to flow horizontally, curving down with gravity, and hit the ground around 9-12" out from the hole - assuming you're worknig ...


7

Many new cars do in have "a sensor system that constantly monitors oil viscosity, conductivity, temperature and electrical parameters." See here: http://www.sensorland.com/AppPage064.html GM for example has been incorporating these into its Camaros, the Lambda platform, various Buicks, and more. Here is another link that might prove helpful to you: ...


7

The worst thing that can happen is that you can destroy your vehicle. Your vehicle is designed to use some very specific lubrication, and using something other than what's specified can be detrimental. If the lubricant cannot withstand high temperatures, you could gunk up your engine and require a rebuild.


7

The oil in the crankshaft is in contact with air and gasoline fumes. If you used an oil with an ignition point as low as the engine temperature, it would probably start a fire in there. I'm not sure how vigorous the fire would be (that likely depends on the air supply, which probably varies between engines), but it would eventually deplete the oil, cover ...


7

Recycle it. Don't use it for anything, it's an environmental hazard. Just get rid of it in the least impactful way. Used motor oil has a plethora of bad chemicals and compounds in it that eliminate for another use once it has been inside your engine for an extended period of time. Aside from the hydrocarbons there is lead, phosphorous, berium, zinc, ...


7

With way too much engine oil in the engine, the problem is that the crankshaft can hit the oil in the bottom of the crankcase when the engine is running. Since the crankshaft is spinning fast, even at idle, each time it slaps the surface of the oil, it will create some bubbles in the oil as the air just behind the spinning crankshaft lobe gets dragged under ...


7

Mixing new with the old will cause you absolutely no issues. As long as you are using the same weight oil, it will mix up and you'd never know it. Continue to change your oil at the specified interval and you should be golden.



Only top voted, non community-wiki answers of a minimum length are eligible