Questions regarding the engine lubrication system

learn more… | top users | synonyms

1
vote
1answer
26 views

Vauxhall Astra diesel replacement clutch

Could someone let me know if a clutch and flywheel is changed on a Vauxhall Astra diesel do they change the gearbox oil as part of the job. Many thank
0
votes
0answers
12 views

Oil in coolant reservoir [duplicate]

I have a '99 olds bravada, noticed it leaking green coolant so when I looked in reservoir I looked like oil floating at the top. Why and how did oil get into the coolant reservoir? And what might it ...
1
vote
2answers
47 views

How to understand different engine oils?

When I went to shop for engine oil, I found many types as such: 5W-30 A5 5W-30 A1 5W-20 SAE 5W-30 10W-30 Also I see other information such as: Fully Synthetic Semi Synthetic Oil Synthetic ...
3
votes
1answer
19 views

Does VW T40057 drain all 6 litres of oil in 2008 Jetta 2.5L?

I came across the mention of the VW T40057 tool, that can be attached to the oil filter housing, and lets you drain the oil without creating a mess. However, it's not very clear whether or not this ...
2
votes
1answer
25 views

What causes mud in my radiator?

Ive changed my oil about one month ago but just recently my check oil light has started coming on and I started losing my heat. I thought I might just have low antifreeze but when I opened my radiator ...
3
votes
4answers
80 views

What causes an engine to burn oil?

What are the different problems that can cause an engine to burn oil and in general how difficult / expensive is each one to repair? How do you diagnose each potential cause? I found this article ...
1
vote
0answers
23 views

Old Cars Burning Oil: How much is too much?

I've heard that it's "normal" for older cars to burn a certain amount of oil and that it's not really a problem. My question is how much is too much? At what threshold does burning oil become a ...
0
votes
1answer
19 views

Motor Oil in Coolant Reserve [duplicate]

2004 Mercedes E500 - Yes, I am sure of it. In a moment of stupidity, I added about 8oz of motor oil to the coolant reserve. I have heard nothing will happen and I've also heard it can mess up the ...
2
votes
2answers
31 views

What are the temperature ranges for different oil grades?

I was reading up on oil grades in wikipedia and was wondering what the operating temperatures are for the various oil grades. I'm wondering since the area I live in is a pretty Mediterranean climate ...
2
votes
1answer
40 views

2015 STI White smoke

My 2015 Subaru WRX Sti is emitting white smoke from the exhaust. The smoke smells like burning electronics. When I pull over and open up the hood, I also see white smoke in the engine bay. The smoke ...
3
votes
1answer
313 views

Mechanic Troubles And A Small Watery Oil Leak

My car is a 2005 BMW 525i E60 with about 180,000km on the clock. It has been well looked after and serviced. I don't get dealer services, but go to a mechanic who has always been good and uses the ...
20
votes
4answers
17k views

How far can I drive with 1 gallon too much oil?

I have way too much oil in my Acura TSX. Do I need to take care of it without turning it on or can I drive it to a service station? If I need to do it in place, I don't have the ramps or a pan or ...
3
votes
2answers
50 views

Lots of oil in radiator, but no coolant in oil and oil is not low

Theres oil in the radiator and the overflow tank of my 2002 GMC Envoy. The oil is fine, and has no water in it. The SUV gets regular oil changes, and the oil presure is fine. Water temperature is ...
1
vote
1answer
19 views

What is the difference between a 2T oil and a 20-40 oil

I know a 2T oil is used in 2stroke bikes and its sometimes added with the fuel too. And a 20-40 oil also known as the engine oil is used to reduce the wear tear in the engine. I'm looking for a ...
1
vote
2answers
41 views

Massive oil drop in the course of a few days

A few days ago i posted a question about the dealer reporting some oil spillage/leakage but that it passed the mechanical test. I checked the oil level of the car from my 80 minute drive home and it ...
4
votes
2answers
75 views

Is topping up the oil enough of an oil change?

If you use synthetic ester-based oil in a relatively new petrol engine, top it up regularly, and the engine runs very quietly and basically without any noise whatsoever (especially after another top ...
0
votes
0answers
25 views

Engine light in Seat ibiza 2001

Occasionally the engine light is burning when turning on the engine. It doesn't always show though and I don't own this car long enough to see a pattern. If the engine light shows it doesn't go away ...
1
vote
3answers
45 views

Hydrostatic transmission oil confusion

I have a John Deere LX176 lawn tractor and am confused about its hydrostatic transmission oil. The manual states that the hydrostatic transmission oil should be "SAE 10w30 engine oil with API ...
4
votes
3answers
1k views

Why check oil when engine is at operating temperature?

The owner's manual to my VW Golf Mk7 states With the engine at operating temperature, park the vehicle on a level surface to ensure that the engine oil reading is correct. Why is it important ...
1
vote
2answers
40 views

What can I do with used motor oil?

Besides recycling? I've heard, for example, that I can use it to lubricate the drive chain (in a motorcycle / bicycle), but that doesn't appeal to me.
3
votes
1answer
2k views

How do I find a vacuum leak? I'd highly prefer not to use a carb cleaner spray

The car is a 1998 Oldsmobile Intrigue with 3.8L V6 engine (3800 Series). I've been doing my research and due diligence, but please understand I'm very inexperienced with automobiles. I went to ...
4
votes
2answers
16k views

Oil in coolant - how much trouble am I in?

I have oil in my coolant reservoir. Could it just be the head gasket or is it almost certainly the entire engine or might it be something else entirely? Thanks in advance...
4
votes
3answers
42 views

C Grade engine oil in petrol / gas engine

I recently bought some Castrol Magnatec oil that is rated C-3, instead of A. The car requires API SG or higher. Looking at the Castrol site, I can use the C-3 oil as it is rated SN, even though C ...
2
votes
2answers
160 views

Can I use EP 80W/90 oil instead of EP90 oil?

I have a Belle MiniMix 150 110V Electric Cement Mixer the documentation says to use a EP90 oil in the gear box, but these days it seems that most outlets only sells EP80/90 oil. What is the ...
7
votes
2answers
81k views

Will Putting An Extra Quart of Oil In My Car Ruin It?

I put too much motor oil in my car's motor. About a quart - have I ruined my car? I've been driving it. I know I need to get the oil drained. But I'm worried that I've ruined my car which has been ...
2
votes
2answers
944 views

Oil pressure warning light stays on longer after oil change in BMW 320d E46

I have changed the oil a couple of days ago, and I've noticed that the low oil pressure light stays on longer than normal. Normally, it goes out almost immediately (<1s) after starting the engine, ...
4
votes
2answers
250 views

Oil leaking from spark plug socket

I have oil leaking from a spark plug socket on my 1981 Volkswagen Rabbit pickup truck. Before you ask, it's swapped with the 1.6 gas motor instead of the 1.6 diesel. The oil leak appears to only be ...
10
votes
3answers
3k views

What differences between synthetic and dino oil?

What are the main differences between synthetic and dino oil, and is one always better than the other?
1
vote
3answers
59 views

What to do when antifreeze is in the oil casing

My son accidently poured some antifreeze into the place where the oil goes now the car runs with ticking when its idle
1
vote
2answers
106 views

Can camshaft seal leaking hurt timing belt and cause sudden engine breakdown while driving? - Volvo XC90

Volvo service told me that the camshaft seal of my Volvo XC90 needs to be replaced for $1000. I see no oil on the timing belt, its dry. It just has some black dust. If there is real leak, can it ...
2
votes
2answers
51 views

1999 Toyota Corona burning through oil in a week

I have a 1999 Toyota Corona with a D4 engine. The engine is giving me trouble and seems to be burning all the oil. It burnt through in about a week (after topping it up completely), and I say burn ...
3
votes
3answers
718 views

How could an oil drain plug fall out after 36 days and 2500 miles?

We had an oil change done at a quick lube type shop. After 36 days and 2500 miles driven, the oil drain plug fell out, resulting in severe engine damage. There was no oil leakage or any sign of ...
8
votes
5answers
5k views

Is it normal for the oil to be dark in color right after an “oil change” in a 10-year old diesel car?

I took my 2002 Jetta TDI wagon to a neighborhood shop about 10 miles, 24 hours ago. They supposedly changed the oil, but the color is very dark, almost black. Definitely not light-colored/transparent. ...
4
votes
2answers
695 views

Add 2 stroke oil to a 4 stroke petrol engine during burn-in period

I'm planning to get a new petrol (gasoline) car soon. A friend of mine, who worked as a motorbike mechanic when he was young, told me he puts a small quantity (125 ml / 4 oz) of 2 stroke oil in the ...
2
votes
3answers
208 views

Are Oil Puddles in Cylinder Head Normal?

Changing spark plugs and one well was full of oil. I took off the valve cover to replace the gasket and noticed that there was quite a bit of oil puddled in the cylinder head. Is this normal or could ...
1
vote
2answers
96 views

Why is there no explosion risk while there is a gasoil pre-pump immersed in the fuel tank?

Attached is the picture of a BMW 318 TDS Gasoil Prepump. That prepump is literally inside the sealed fuel tank. And it contains a small electrical motor, in which 12V of electricity is sent, mainly ...
2
votes
1answer
32 views

Oil cap has come off and oil has spilled after adding oil

I've opened the bonnet to discover that the oil cap is off, and oil is all over everything. How can I get it cleaned up, and what damage will it have caused, if any?
3
votes
2answers
36 views

Oil leak should have changed oil not added

I have a Vauxhall antara and the warning light came on for what I thought was low oil so I refilled and checked dip stick and all was fine. I have now noticed oil leaking from my car and on further ...
1
vote
1answer
111 views

Oil Says Empty, Dipstick clean, but just changed it all?! 1998 Merc Benz ML320

Had an issue come up yesterday where my Truck (1998 Mercedes Benz ML320) just suddenly said no oil and then started pinging a little then cut off. I threw a quart in ( i always keep one in the truck) ...
2
votes
1answer
201 views

Do I need to add oil after A/C evacuation without replacing any parts?

My 1999 Suburban's A/C started to lose its cooling capacity last fall. In late fall it stopped cooling completely (there was a mechanic involved with other parts of the vehicle at the time). This ...
2
votes
4answers
651 views

Replacing oil sump plug washer after every oil change

As the title says, does the oil sump plug washer need to be replaced after every oil change, or can they be reused? Background - my 2005 Daihatsu Copen needs an oil change every 3000 miles. I have ...
3
votes
1answer
54 views

Oil in Radiator but not in the oil and no smoke or overheating…why and what does it mean?

I just bought a 2005 Nissan UD 245 series truck. It runs well, no smoke, no water in engine but when I open the radiator capp I found a fair bit of oil in the water. I flushed the radiator and filled ...
3
votes
2answers
9k views

Accidentally poured engine oil into the coolant reservoir

My 1990 Mazda 626 leaks oil like a sieve, so I regularly top up the oil. In a moment of stupidity, I opened my radiator cap instead of my oil cap while topping up my engine oil, and poured about ...
1
vote
2answers
26 views

Sealing two stainless steel cylinders

I have 2 stainless steel cylinders (very thin) that I want to fit together. One has a diameter of 10cm and the other a bit more (around 11cm). I was thinking of sealing them together with an O-ring, ...
11
votes
4answers
6k views

Is it OK to mix oil of different viscosity?

I have a Mazda RX-8 (with a Wankel rotary engine). Mazda advises North American owners to use 5W-20 oil. The engine was just replaced 200 miles ago by the dealer so it currently has 5W-20 in it. ...
5
votes
2answers
2k views

Oil leak when parked on steep incline

The other day I parked my car, and came back a couple of hours later to see a massive oil puddle under my 1994 Corolla. This was the only time I had ever noticed that much of a leak, and I realized it ...
2
votes
2answers
68 views

15k mile oil filter

I have been using M1 in my jeep since I bought it with 22k miles on it. I now have 31k and i am thinking about getting M1 Extended Performance which is supposed to last 15k miles between oil changes. ...
4
votes
1answer
128 views

Engine-wise, how damaging is oil burning?

Assuming that an engine always has enough oil to be lubricated properly but burns quite a bit of oil, can it cause any damage in long-term because it doesn't belong to the combustion chamber? I have ...
5
votes
2answers
637 views

Do different brands of the same oil really make a difference?

I've found several other questions on here that answer, "what's different between synthetic oil and regular oil?" or "Can I use X oil in Y car?", or similar, but nothing that quite answers my ...
2
votes
3answers
150 views

Hyper-miling and stress on engine oil

The other time I asked my mechanic, are my tyres about needing to be changed? He said, naw, another 8000 miles. After driving 7000 miles, I asked another mechanic who again said, long way to go. ...