Hydrocarbon based petrochemical used to lubricate components of an internal combustion engine.

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4
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1answer
227 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 ...
6
votes
2answers
2k 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 ...
1
vote
1answer
195 views

Does non-synthetic 10w30 motor oil contain sulphur?

I ask this question as I plan on using 10W30 motor oil in my Jeep's manual transmission and need no sulphur added to the oil so that it is "yellow metal safe". I'm not looking to start a discussion ...
3
votes
3answers
812 views

Do the Check Engine and Oil Pressure lights have any significance when the engine is off?

I should preface this by saying that I'm a relatively brand new driver, and I know next to nothing about cars. I've got a 2005 Chrysler Sebring, and I've noticed just today that when I put the ...
3
votes
1answer
188 views

Slight dent in motorcycle oil filter: bad for flow?

I replaced my motorcycles oil filter the other day and accidentally dented the outside casing of the new one putting it on. I know its probably nothing, but would this impact the flow of oil through ...
3
votes
1answer
175 views

Why aren't oil drain valves more commonly used?

An oil drain valve is a device that replaces your regular drain bolt and makes an oil change a much cleaner job. When it's time for an oil change, you simply attach a hose to the oil drain valve, open ...
7
votes
5answers
224 views

How can I know if the right oil has been added to the vehicle?

Considering that the car recommend Mobil 1 Synthetic oil as per the logo on the oil cap, how can I be sure that the garage that did the oil change poured the recommended oil and not another low cost ...
2
votes
1answer
361 views

Whining noise from valve cover region, Nissan Primera P11 1999

Recently I've been hearing a whining noise from the engine bay. After checking, it seems to come from the valve cover. I've checked the motor oil; level seems ok although the oil is black but not ...
2
votes
1answer
689 views

2003 Honda Civic 1.7 vTec - White Smoke from the tailpipe

I have a Honda Civic 2003 gx 1.7 liter vTec stick shift 4 cylinder. Just today I had to put oil in my car. Drove for about 5 minutes got to a light and when I shifted into first gear a white cloud of ...
4
votes
1answer
101 views

Where on the Jeep Wrangler TJ can I tap into the oil line?

I would like to install a By-Pass filter on my Jeep TJ (2004). Where can I put the other end of the tube going into the filter? I have included a diagram illustrating what I am looking for (where ...
1
vote
1answer
206 views

very bad gas mileage in a brand new german car

I bought a brand new 2008 Jetta SE (2.5L petrol engine, automatic transmission, 21mpg city, 29mpg highway) in May 2008, which had under 200 miles on it. I immediately within a week drove it from ...
6
votes
2answers
344 views

Oil pressure question

I am driving a 1995 Bonneville and, lately, whenever I am idle, at a stoplight for example, my oil pressure drops and my check engine light comes on. Any ideas on why this could be happening?
2
votes
2answers
463 views

Rounded Oil Drain Plug Dodge RAM

I am changing the oil on a 07 Dodge Ram 1500 with a manual transmission. First surprise was the filter that required a wrench to take off. Second is the oil drain bolt is skipping a lot, I can't get ...
2
votes
2answers
700 views

Grey smoke when idling 1999 GMC Suburban, coolant system pressure loss

The most recent update is at the bottom. This looks interesting. The Smoke I'm confident the smoke is from burning oil. It's slightly blue, absolutely not white. If the engine is warm and I am ...
1
vote
1answer
1k views

At what level does low oil prevent vtec from working?

Just got my first vtec honda and vtec isn't kicking In and before I take it to my mechanic to see what it is I'm curious to know how low the oil has to be to effect the vtec. My oil level is just in ...
3
votes
2answers
1k views

Oil dipstick with burnt oil on it

That's what my dipstick looks like. Note that it's dry on the picture, there's no oil on it. It has that brownish area which I can't scrape off. I have had the car for a short time and was changing ...
1
vote
2answers
2k views

Lower quality oil vs high quality oil [closed]

tl;dr Which is best? Buying high-quality, longer-lasting, but more expensive oils and changing oil less frequently or buying lower-quality oil but changing more frequently? As I'm trying to find my ...
2
votes
1answer
585 views

2004 Ford Escape Reserve Coolant mixed with oil

I have been using my 2004 ford escape 4x4 v6 for nearly 7 years now since my dad gave it to me. I am not a very technical guy when it comes to car maintenance but I see to it that it is always ...
1
vote
1answer
775 views

Change in engine oil color just after oil change

I have changed my new Swift VDI car engine oil at 19344kms. Just after the oil change at 19344reading means car is not run even 100 feets i checked the oil and i found it very black in color and it ...
4
votes
2answers
4k views

I put too much oil in my car, the level has been corrected now but it's still smoking

I put two quarts of oil in my car, then it just started throwing out smoke almost immediately out of exhaust pipe. Drove it home less than a mile, my husband said i put too much oil. So he drained the ...
1
vote
3answers
6k views

Difference between “Hypoid” and “Limslip” oils

Recently I changed the oil in my vehicle's rear differential. The manual recommended the use of a "Hypoid" oil, but the guy at the auto parts store suggested a "Limslip" oil instead. I went along ...
1
vote
1answer
297 views

Does one have to change ester-based fully synthetic oils?

They say that ester-based oils are used in jet-engines, where the oil is sealed, and it never has to be changed. If I use an ester-based oil as the lubricant for my Jetta 2.5L petrol, such as the ...
2
votes
3answers
3k views

Why is my engine quieter with synthetic oil?

I just replaced the oil in my 2004 Jeep Wrangler today - I thought I'd give synthetic oil a try because there was a "Mobile 1 oil and Bosch filter" deal at my local auto shop. Until now I have ...
3
votes
2answers
2k views

accidentally placed oil in the coolant reservoir in a BMW 325i. How do I fix it and what is the cost?

I accidentally added oil to my coolant reservoir. I have a BMW 325i. The oil light came on and I figured my oil may be low. When the oil was added the oil light warning went off. However, the ...
3
votes
1answer
10k views

Revs shooting up when accelerating in high gears

The other day my '03 Ford Fiesta suddenly failed in 4th gear when I changed from 3rd to 4th. My revs shot right up reaching roughly 5000 without any acceleration then after a few seconds the revs went ...
0
votes
1answer
45 views

Do ester-based oils less or more likely to disappear from the engine? [duplicate]

It is known that some oils are eaten up by the engine, at a rate of up to 1L per 1k miles or so. Are ester-based oils (like Redline 5W40) less or more likely to disappear from the oil pan after going ...
0
votes
1answer
148 views

Does a low oil level mean some synthetic has converted to sludge?

In a 2008 Jetta, 2.5L petrol engine, I started driving more on the highways, and taking longer trips, and noticed a much better mileage than the prior driving that was still mostly highway, but ...
2
votes
1answer
163 views

motorcycle oil for m50B25TU (BMW E34)?

I just bought an e34 from a friend and he said he uses liqui moly racing synth 10w-50 for the engine. My mechanic was quite surprised when I told him and said I shouldn't use that, instead use real ...
2
votes
2answers
154 views

burnt motor oil: do suspended particles burn off, too?

My 2008 Jetta SE, 2.5L, seems to be burning quite some oil — engine looks clean, and there are no spots on the ground, but I've already added a few extra litres of factory-recommended synthetic ...
2
votes
1answer
5k views

How does low oil level cause misfires or VTEC malfunctions?

So a few days ago my 2003 Honda Civic EX started misfiring while accelerating, especially with the A/C turned on, making popping noises, and then yesterday got a P1259 "VTEC system malfunction code". ...
2
votes
1answer
1k views

1998 Chevy Lumina won’t start, crank, or click

I have a 1998 Chevrolet Lumina and recently I have had intermittent starting issues. My brother and I bought a new starter and put it in and it still wouldn’t start. After replacing the starter we’ve ...
1
vote
2answers
452 views

Cream on oil cap? How to maintain a car that drives only short distances in Nordic environment?

My friend needs a car for night-time driving for distances about 15 km to-and-fro for his work. I read that short distances may be problematic to cars because the engine does not get hot enough -- ...
2
votes
0answers
240 views

Audi A6 2.4L 99 - randomly sets off brake warning lights, no abs, no rpm, no A/C

Randomly while driving or standing still I get a bunch of warning lights that come on, beep and blink. Sometimes it lasts a few minutes, sometimes it will stay on for a few days of driving and turning ...
1
vote
1answer
64 views

Oil in coolant after gasket work 1995 Chevrolet Lumina

I had a coolant leak that turned out to be a bad gasket. Coolant was leaking into the motor. I had the gasket replaced, and was told to change the oil after a few hundred miles. When I did, it turned ...
1
vote
2answers
3k views

Having Trouble with my 2003 Ford Escape oil light and coolant light

I have a 2003 Ford Escape V6. I'd have to say a couple of months ago my oil light popped on (most of the time only when I hit the brakes), then it would kind of blink a lot until I was on the gas ...
2
votes
1answer
131 views

Oil gauge needle is at highest point

I have an 89 Mercedes 300 SE and recently the oil pressure needle has been stuck at the highest point when I accelerate. The values on the gauge are 0 to 3. When I take my foot off the gas the value ...
-3
votes
1answer
6k views

What happens if petrol is used in a diesel engine?

The question is asked for various proportions : - 10% of petrol - 50% of petrol - 100% of petrol in a diesel engine. PS : not a duplicate of What happens if unsuitable oil is used in a vehicle ...
1
vote
2answers
412 views

'92 Toyota Corolla with a oil leak

My 1992 Corolla is leaking oil when driving then pools while parked. Already checked the oil pan and no leak. Where else could it be coming from?
2
votes
0answers
465 views

High oil pressure in a marine engine

High oil pressure in my marine Perkins 4108 diesel showing 80 on the gauge, oil and filters recently changed, wiring checked and ok it runs an alternator to charge the batteries and when disconnected ...
1
vote
3answers
1k views

Do motor oil conditioners do anything, or are they just a marketing ploy?

It it worth using a motor oil conditioner? Do they actually help keep an engine running better, or are they just marketing ploys?
7
votes
3answers
256 views

Will I be okay running thinner oil with a minor oil leak on an older car?

Recently when I had some work done I was shown a minor leak, I believe he told me it was the oil pan. It doesn't drip out onto the ground, but if you look closely you can see condensed oil drops on ...
1
vote
1answer
548 views

How to clean/dispose of oily/greasy shop rags?

I have some rags (as I'm sure we all do) that are covered in oil and other various fluids. Is it alright to wash these in a standard washing machine and then air dry them? Is there a specific ...
3
votes
2answers
3k views

BMW E30 M20 oil warning light goes on on hot days but the motor sounds and performs fine

The car: BMW '90 E30 320i Cabrio with the six-cylinder M20 engine. The problem: the red engine oil warning light inside the instrument cluster (not the check control) lights up after some driving. ...
5
votes
2answers
452 views

Synthetic Oil and oil change frequency

My car (a 2008 Scion tC) says to have its oil changed every 5K miles or 5 months. I just took a new job and commute into the city by bus so I'm driving a whole lot less. I was told that if I got full ...
3
votes
1answer
217 views

Cleaning a Jerrycan

I have a couple of 10 Litre steel jerrycans which I used for draining kerosene (UN1223 28sec burning oil) from a tank. After disposing of the kerosene I left the open jerrycans upside down over some ...
8
votes
4answers
6k views

How do I select the right oil for my car?

I can give you my cars make and model and the conditions that I drive in, but I'm looking for a general guide to selecting the right oil for a car. I'm not really knowledgable when it comes to cars so ...
0
votes
2answers
1k views

Nissan Pulsar ST1.8 oil filter change

First time replacing oil filter and oil. I've drained the old oil from the oil tank and I now want to remove the existing filter. For the life of me, it seems as though the filter is in the most ...
3
votes
1answer
212 views

Cannot Pull Oil Dipstick

Here's a simple, yet frustrating, problem. I cannot check my oil, because the dipstick is stuck fast to the tube. I don't really want to pull and twist so hard that it breaks off.
1
vote
3answers
1k views

Where can I look to find what kind of oil I should use for my car

Right now I want to change the oil in my 2002 Kia Sedona but I have several cars and I'm never quite sure what kind of oil to use in them. What I'm really looking for is a link to a site that I can ...
4
votes
2answers
665 views

Which oil grade and kind should I use on a sport car that does amateur drag?

The car is a Dodge Neon SRT-4 with about 81,000 miles that is used for amateur occasional drag. What grade and type of oil would be the best to improve my performance while still preserving the ...