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72 votes
Accepted

What actually happens when there is not enough oil in a car engine?

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 ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
23 votes

What's the point of servicing a car?

The point of servicing any vehicle is to replace consumables that have a limited lifetime: oils (usually engine oil, but there could be other) filters spark plugs brake pads (very important!) ...
Alin P.'s user avatar
  • 1,334
19 votes

What actually happens when there is not enough oil in a car engine?

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 ...
JPhi1618's user avatar
  • 13.3k
18 votes
Accepted

What actually happens when there is way too much oil in a car engine?

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 ...
Edward's user avatar
  • 2,847
17 votes

What's the point of servicing a car?

tl dr: To improve the useful life of your vehicle. While vehicles seem to be lasting longer, there still isn't a perfect machine out there: they all need maintenance of some sort or another if you ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
12 votes
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Apparent duplicates between Haynes service instructions and MOT

Duplicating checks isn't a bad thing. I, personally, check everything (or at least, all that I can without specialist equipment) that the MOT checks, for one very simple reason - I can then fix it, ...
Nick C's user avatar
  • 28.8k
11 votes

What's the point of servicing a car?

The UK annual vehicle test (the MOT) is purely to verify that the vehicle is safe to run on the roads and is not going to cause an accident or extra damage... so the tyres have tread / the brakes and ...
houninym's user avatar
  • 111
9 votes

Dealership's service dept drove my car 19 km

I see this completely normal and not a cause of concern. The service advisor's explanation is certainly a valid reason, but they could have needed to drive the car for a total of 19kms for many ...
WeakMech's user avatar
  • 944
8 votes

What actually happens when there is way too much oil in a car engine?

If an engine is that full, it will pump oil through systems it shouldn't, such as the PCV system into the intake manifold. Piston rings, even in a fresh engine, always have at least a minimal amount ...
kmarsh's user avatar
  • 2,159
8 votes
Accepted

Renewed brake pads

German here. The word "erneuert" always means that something has been replaced. The only remarkable exception is a "runderneuerter Reifen" i.e. a retreaded tire, though... even here something has ...
sweber's user avatar
  • 7,057
8 votes
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How to perfectly service a car yourself

The first place to look is your car handbook - somewhere near the back should be the service schedule, which will list which things need to be checked on each service. Usually a big table with the ...
Nick C's user avatar
  • 28.8k
7 votes

What's the point of servicing a car?

Clearly servicing an engine will allow it to do a lot more miles before it wears out. For example old oil does not protect the engine well. However in the UK the maths get interesting….. As most ...
Ian Ringrose's user avatar
7 votes

What actually happens when there is not enough oil in a car engine?

Disclaimer: I work with an older 202 straight 6 Holden engine in a landrover, so my perspective is somewhat vintage. However the basic underlying concepts are the same. Cause: Low oil in the oil pan,...
Criggie's user avatar
  • 2,908
7 votes

Should I have run out of engine oil?

A liter or two of oil in nine months might be a lot, or it might be quite normal. It really depends on the condition of the engine and how and how much you drive the car. The engine is continually ...
dlu's user avatar
  • 14.5k
7 votes
Accepted

MOT in UK, is there a tolerance time when the MOT is expired?

Firstly, you can have it done 1 month before the expiry date, minus 1 day and you will still preserve the full length of your MOT. This is done for convenience and to allow time for repairs. I always ...
DizzyFool's user avatar
  • 1,571
6 votes

What actually happens when there is not enough oil in a car engine?

I can answer this because it has happened to me a few times. There are several different possibilities depending on the ambient temperature and how old the engine is. Here are three real scenarios ...
Cooter Davenport's user avatar
6 votes

What's the point of servicing a car?

Let's pick one example of a component that doesn't feature in the inspection* , but is worth servicing at the recommended intervals. The timing belt . This is the belt which drives the camshaft, ...
Level River St's user avatar
6 votes
Accepted

How to determine if manual transmission fluid has to be changed?

tl dr: Unless you have a leak somewhere in your manual transmission, leave it alone and don't worry about it. If you look at the maintenance schedule for Hondas, you'll find there's no schedule for ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes

Why does my garage insist on using an engine flush when changing the oil?

Why? Well, money. Even if its $3, that counts as an upsell. They will probably sell the "engine flush" to most people. Raising the average sale by a fair amount. Follow the vehicle's manual. Don't ...
race fever's user avatar
  • 3,363
5 votes

Service intervals of different cars

Finding information on the service required: call a dealer and ask them. Look online at forums. Etc. How to tell if it's been neglected, that's the more important part of your question IMO. You ...
CBRF23's user avatar
  • 536
5 votes
Accepted

Buying a car without a service history?

This is something like buying a large farm at a great price with just one glitch: the owner tells you there may be a couple landmines hidden on the property somewhere. With this amount of lack of ...
anonymous2's user avatar
  • 5,235
5 votes

Car battery - Disconnected just positive while doing work

Ah yes, those pesky little battery terminals. They ain't the same. The one labelled "+" (usually red) is connected to everything electrical in the car, while the one labelled "-" (usually black), only ...
tlhIngan's user avatar
  • 12.2k
5 votes
Accepted

Error Stabilization Control (ESC)/ ABS warning shown on my car dashboard

Many modern cars have advanced traction control systems which aim to prevent a loss of control, most of these operate by adding computer control to each individual brake, with a central computer using ...
GdD's user avatar
  • 16.4k
5 votes

Is failing to change brake fluid a life safety issue?

YES. A big Y-E-S. It's a huge safety issue. See, braking fluid absorbs(even attracts) water over time, not so much over usage, if at all. Brake fluid gets really hot, even more under sustained braking ...
Bart's user avatar
  • 2,944
4 votes

Motorcycle Maintenance Tasks - Please Provide a List of Actions

Motorcycle Maintenance Tasks These tasks occur differently based upon the requirements of each manufacturer, find out what the intervals are for particular make/model/year. Cable lubrication - A ...
DucatiKiller's user avatar
  • 32.9k
4 votes

Is it typical for a shop to charge extra for labor if you bring your own parts?

Being a small shop owner, when customers bring in their own parts we lose money on the job. A lot of shops give the honest ones a bad name. The major chains always charge an arm and a leg, but when ...
Cindy Pagliarini's user avatar
4 votes
Accepted

Have my tyres been tampered with?

Take the left side wheels off, bolt them on backwards, and turn the car upside down... Seriously, @spicetraders nailed this in the comment. the US DOT date codes [WeekWeekYearYear] are only hot-...
SteveRacer's user avatar
  • 12.4k
4 votes

Apparent duplicates between Haynes service instructions and MOT

The MOT is there to make sure your car is "roadworthy", i.e. safe to drive. It's done once a year, which means there's 364 days when something can go wrong that could kill you if it's not caught, or ...
GdD's user avatar
  • 16.4k
3 votes

What actually happens when there is way too much oil in a car engine?

The real answer is- it depends. An extra couple of quarts? Probably no real effect. If you put in enough that the crank is sloshing the oil around, you probably will get a foam of oil all around the ...
Jim W's user avatar
  • 1,935
3 votes

What's the point of servicing a car?

Servicing usually applies to the replacement of items which are consumable or have a limited life and need to be routinely replaced at regular intervals, including things like lubricants and filters ...
Chris Johns's user avatar
  • 1,596

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