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42 votes

Leaving car for 3 weeks, change oil before or after?

There is no correct answer to this. It is only a matter of preference that will give you peace of mind. Since the car is not being driven, the oil change can happen at either point. You will see no ...
CharlieRB's user avatar
  • 9,015
37 votes

Leaving car for 3 weeks, change oil before or after?

Change it after, especially if you are having the oil filter changed at the same time (which is often recommended.) It is always possible that the mechanic will carry out the job incorrectly, and ...
Level River St's user avatar
34 votes
Accepted

Should I perform my first oil change at 1000 miles, or when the manual says?

The 1000 mile oil change is a holdover from days of yore. It falls into the "my grandfather /father (add appropriate generation) said you should always"... Add what ever urban myth was part of the ...
mikes's user avatar
  • 19.9k
28 votes

Garage tech drained oil and forgot to refill. I drove off - what damage could this have caused?

I personally dropped all the oil and coolant from a Rover K-series engine (in a scrap car) and the engine took a good twenty minutes of very hard abuse (redlining / rev limiter / dumping the clutch in ...
Steve Matthews's user avatar
27 votes
Accepted

Everytime I go to change my oil filter it's extremely hard to remove. Any way I can make this easier for me in the future?

... and screw it in by hand, maybe a couple of twists with an oil filter strap wrench. Don't over-tighten it. Tighten it by hand then at most about a quarter turn with a strap wrench or by hand (...
Jason C's user avatar
  • 4,890
24 votes
Accepted

What happens if I change the oil when the engine is cold?

The benefits of changing it hot are the that oil is less viscous, so it flows better, allowing more of the old oil to drain. It will also drain more quickly. I know when I do mine, I let the engine ...
cdunn's user avatar
  • 9,296
21 votes
Accepted

Using gasoline to clean crank case?

Gasoline flushes the oil out of the very spots where you need lubrication, so the next time you start it, the bearing surfaces are "dry" until the oil pressure builds up enough to relubricate them. ...
jwh20's user avatar
  • 12.1k
19 votes

Garage tech drained oil and forgot to refill. I drove off - what damage could this have caused?

First, document everything as accurately as possible. Write down every step and keep every single piece of correspondence with V-Oil and their employees. Write down exactly the steps you took from ...
Chris Paveglio's user avatar
17 votes

Should I perform my first oil change at 1000 miles, or when the manual says?

Do what it says in the owner's manual. FWIW the manual said the first oil change from new on my current car was at 18,000 miles, not 1,000. I queried that with the dealer and the reply was "yes, that'...
alephzero's user avatar
  • 2,954
16 votes

Running Harley for 100 miles with no oil

It sounds like the engine has suffered severe internal damage. You would only get away with running a vehicle with no oil for a few minutes assuming there is a residual amount left in the sump and ...
Orb's user avatar
  • 5,067
15 votes

Everytime I go to change my oil filter it's extremely hard to remove. Any way I can make this easier for me in the future?

Oil filter strap wrenches are made to remove filters, not put them on. Oil filters should be made finger-tight, not hand-tight and certainly not wrench-tight. The filter will go through expansion-...
tlhIngan's user avatar
  • 12.2k
14 votes

How do I tell if I screwed up my oil change?

Here's a "tip to make sure I got everything right" for the future. One that I use myself, and taught my Auto Tech students as well: The very first thing is to take off the oil cap, and place it over ...
SteveRacer's user avatar
  • 12.4k
13 votes
Accepted

Should I use open engine oil that was left over from previous oil change

If the oil is unused, and unopened, there is nothing wrong with using it. ExxonMobil recommends a five-year maximum shelf life for engine oils, including Mobil 1™ synthetic motor oil. Opened ...
CharlieRB's user avatar
  • 9,015
13 votes
Accepted

Does engine oil get old and go bad?

Short answer .... NO !! Now this is one of those seriously contentious topics that people will chime in from all walks of life, experience, and voodoo. I will speak [yell] my piece, and put on my ...
SteveRacer's user avatar
  • 12.4k
13 votes

Does a, “5% oil life remaining” dash message mean low quality or low quantity, or both?

Realistically, it doesn't mean either. The life expectancy is just that, how long you should be able to continue to use the oil which is in there. There is nothing wrong with the oil. It will ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
12 votes

How can I get this broken oil drain cover off?

There’s an outside chance you could get it started with a hammer and chisel but a safer bet would be to drill a couple of holes and use a peg spanner - the sort of thing you’d use to change an angle ...
Frog's user avatar
  • 360
11 votes
Accepted

How important it is to drain all the oil when doing an oil change?

Old oil isn't poison to your engine or to the new motor oil you are putting in. When you are doing an oil change, whatever old oil is left behind (along with the particulates floating around) will get ...
tlhIngan's user avatar
  • 12.2k
11 votes

How can I get this broken oil drain cover off?

I would try using a hammer and centre punch to tap around the circumference of the plug in the direction that will undo the plug. Example video of how to do it - https://www.youtube.com/watch?v=...
HandyHowie's user avatar
  • 25.4k
10 votes

What happens if I change the oil when the engine is cold?

No problem doing it cold, but better to do it hot so the oil flows easier. Proper tools will help, and so will experience. I've been burned a lot too, but that's because I'm not very adept, and have ...
SteveRacer's user avatar
  • 12.4k
10 votes

Should I use open engine oil that was left over from previous oil change

Yes, as Charlie says, as long as it has been stored correctly it should be fine. I generally use the leftovers from one change when I do the next so that it's not sitting around for too long - e.g. if ...
Nick C's user avatar
  • 28.8k
9 votes
Accepted

How do hybrid's with all-electric mode typically handle oil changes?

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, ...
MooseLucifer's user avatar
  • 6,007
9 votes
Accepted

How do I tell if I screwed up my oil change?

I believe you just dripped some oil on your exhaust when drained it, don't worry, and your "paranoid" stuff is good - it means you care. Good job Snake! ;)
Arturs Bolsunovskis's user avatar
8 votes

Engine oil refill volume in Bajaj Pulsar 220

I run the manufacturer spec oil Why? Because they designed the engine, I didn't. The performance increase with a thinner oil is negligible. The oil level is associated with the height of the oil ...
DucatiKiller's user avatar
  • 32.9k
8 votes
Accepted

Is the 16,000 km oil change interval for the 2016 Corolla correct?

To answer the question about what changed with vehicles requiring longer oil change intervals, the answer is that there are a number of factors. Internal tolerances have improved, oil quality ...
Drawninpictures's user avatar
8 votes
Accepted

What are the ideal conditions for changing oil in a car engine?

It sounds like you're thinking the distance you have to drive will affect the quality of the oil change. I don't think there's anything to be concerned about either way. The main advantage to changing ...
barbecue's user avatar
  • 1,597
8 votes

What preparations to make before changing oil on old neglected tractor diesel engine

The engine in your tractor should hold are 6.5 quarts (6.2L) of 15W-40 oil. That amount should fit in most oil collection pans. If you want to use kitty litter as oil clean up, that's a great idea. I'...
Pᴀᴜʟsᴛᴇʀ2's user avatar
7 votes

What happens if I change the oil when the engine is cold?

Think of a cup with sediment (dirt, sand). If you shake it up real good, then dump it out, you will get most everything out. If you let it sit overnight, the dirt and sand settle to the bottom. ...
rpmerf's user avatar
  • 8,403
7 votes

Why is engine oil replaced more often than transmission fluid?

The engine oil has to deal with very high temperatures (best example: the piston rings). Also the engine oil degrades because it gets contaminated with soot, corrosive combustion byproducts and fuel ...
Martin's user avatar
  • 8,458
7 votes

How can I get this broken oil drain cover off?

Since what is left is scrap, I would drill and tap close to the edges, but not so close to the edge as to interfere with the threads (otherwise it would lock it in place) so two bolts with nuts can be ...
Solar Mike's user avatar
  • 34.6k
7 votes

Antifreeze poured in instead of oil at oil change

If you had enough antifreeze in the oil to foul your filter, then you have too much antifreeze in your oil for safety. Drain again, change the oil again. Sorry, but otherwise your antifreeze+oil will ...
PcMan's user avatar
  • 181

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