This tag should be used for anything related to the use of automotive engine oil, or in reference to other parts of the car that also require lubrication using oil.

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1answer
54 views

sludge in radiator after shaving head 2005 Hyyndai Elantra manual transmission

Recently had head shaved and replaced (about ten days ago) and am now seeing a creamy cocoa colored sludge in radiator but no water in oil. What could be the cause?
2
votes
1answer
193 views

Causes for engine/oil gunk around bottom of engine bay

My 2007 Tacoma has a lot of engine/oil black gunk around the bottom of the engine bay (below the battery and that area). I'm talking about solid black. Could that be caused by a leaky oil pan gasket? ...
2
votes
1answer
761 views

How much more slowly do synthetic oils degrade compared to conventional oils?

I don't drive my car very often and in the 13 years I've owned it I think I only ever reached the 5000 mile limit once during a long roadtrip; instead I always end up driving only about 2000 miles in ...
2
votes
1answer
113 views

Huge oil leak but plug still there

Just had an issue with my 2008 4runner. The engine light came on, and so I pulled over and checked the oil level. It seemed to not have any, so I added a quart. I looked under the car and saw that ...
2
votes
1answer
2k 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
1answer
950 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 tuned-...
2
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2answers
177 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
2k 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 ...
2
votes
1answer
207 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 ...
2
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1answer
66 views

2006 Ford Fusion - High Oil Consumption

My 2006 Ford Fusion (4 cylinder, manual transmission) is using a lot of oil. 1 qt every 300 miles. No smoke, no oil spots under the car on the garage floor. Where could the oil be going?
2
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1answer
258 views

What oil should I use for Hyundai Sonata 2004?

What oil should I use for this car? How do I know when I should change the oil for my car?
2
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1answer
211 views

03 Ford Escape V6 Oil/Coolant/check fuel cap lights

I just had my oil changed and had coolant put into my car a few days before Christmas. Also, bought a new fuel cap the same day. All of these lights are still on and I have no idea how to make them go ...
2
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1answer
2k 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 ...
2
votes
1answer
150 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
2
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1answer
84 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?
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votes
4answers
4k views

Is starting idle RPM always lower in colder temperatures?

I've noticed that my 2008 Jetta 2.5L 5W40 generally starts up with an idle RPM of at most 1.2K RPM around the freezing temperature (say when the temp sensor reads 33°F), or even at just about 1K ...
2
votes
2answers
418 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 ...
2
votes
0answers
49 views

Running in oil a for light diesel engine japanese, Toyta 3L?

What would you use as a running in oil for this engine? I have this engine, and it has just been reconditioned, new pistons, conrods, crank and bearings.
2
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0answers
28 views

2001 Pontiac Grand Am - Oil in coolant [duplicate]

I just bought my car from a owner I noticed there was oil or what looks like oil in the coolant there is no coolant in oil and car doesn't over heat. It's a 2001 Pontiac Grand Am with 230,000 miles ...
2
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0answers
604 views

High oil pressure in a marine engine [closed]

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 ...
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2answers
156 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 ...
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3answers
2k 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 ...
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vote
1answer
81 views

Does 5w-20 synthetic engine oil provide better resistance to heat than 0w-20 synthetic engine oil?

I read a comment on a Youtube video about doing an oil change for a 2012 Honda Civic. The recommended oil type for a '12 Civic is a 0w-20 synthetic oil. However, the youtube posted a comment ...
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2answers
414 views

Motorcycle stalls shortly after starting

I have a BMW 2008 F 800 st and the oil looks watery. It stops pretty frequently after riding it around the block. When it stalls, after some hesitation, it will start again. I need an unbiased answer ...
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vote
4answers
11k 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 ...
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3answers
4k 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 ...
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1answer
1k views

Change in engine oil colour immediately after oil change

I changed the engine oil of my Suzuki Swift VDI at 19,344kms (12020 miles) The car didn't even run 100 feet (about 30m) before I checked the oil again, and it was very black in color and had poor ...
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2answers
4k views

What is an oil catch can for?

Some RX-8 owners have been recommending installing an oil catch can, to prevent problems from "overfilling" the oil. I assume this doesn't mean spillover (does it?), but instead, too much oil in the ...
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1answer
497 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 ...
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3answers
2k 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?
1
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1answer
147 views

OIL ON MY ALTERNATOR

My 1996 XH Ford GLI LONREACH UTE with a 4.0 Tickford motor 5 sp man, had a oil leak (oil leak fixed! and I was quite proud of myself) from the rocker cover gasket, resulting in enough oil that would ...
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2answers
69 views

Overfilling the oil level [duplicate]

I recently had my oil changed on my 2004 Buick Century. Does overfilling the oil level harm the engine?
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1answer
55 views

Why does my 2012 Honda Fit's engine oil quickly get dark but my ~2009 Ford Edge's oil seems to stay quite clear?

My brother's approx. 2010 Scion's oil seems to get dark rather quickly as well. I've heard that darker oil means that the oil is doing its job and keeping the engine clean by bringing the contaminants ...
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2answers
31 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, ...
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2answers
710 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 -- ...
1
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1answer
70 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 ...
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1answer
737 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 ...
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2answers
2k 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 ...
1
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1answer
31 views

Checking oil on a newly-aquired used motorbike

I've recently bought a used motorbike and am unsure of how to gauge the age/condition of its oil: Neither did I fill the oil in the first place (so I don't know what colour it used to be) nor have I ...
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2answers
150 views

I almost stalled and my oil light came on

I was driving along this evening and lifted the clutch too quickly by mistake. I have hardly ever done this (about twice a year) However, this time the engine revs dropped to about 100-200rpm, and ...
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1answer
60 views

How to properly add engine oil?

My car is loosing engine oil and so every once in a while I need to add anywhere between a liter and two liters to it. So far, I've done it with the engine warm, and I'm only careful not to let the ...
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2answers
139 views

synthetic oil change frequency

2004 VW Jetta GLS: always using full synthetic oil (Castro Edge 5w30) how often should the oil be changed? Can't find my manual or info online.
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2answers
3k views

What are the reasons to mix oil & coolant?

Frontal impact vehicle is there fan motor touches the oil cooler,oil cooler slight impact is there, in coolant tank oil and coolant mixed, what are the reasons to mix the coolant and oil in this ...
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1answer
1k 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) ...
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2answers
4k 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 ...
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vote
1answer
281 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 ...
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2answers
578 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?
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1answer
645 views

Check Oil Light Stays on for 20+ Seconds When 2004 Trailblazer Starts

Lately, my 2004 Chevy Trailblazer has been displaying the "Chk Oil" light when the vehicle first starts up for more than 20 seconds - much longer than the normal dash light test. Then is turns off and ...
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1answer
61 views

Do additives within oil separate?

Draining excess oil tomorrow and wondering after leaving the car overnight will any additives within the oil separate sinking to the bottom of the sump? If so how long of a drive should I take it ...
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1answer
52 views

How can I empirically evaluate the condition of my used motor oil at home?

I changed my oil recently, and my careful scientific observation led me to discover that it was black and a bit runny. Not clear golden like new oil, but neither tarry sludge like a haven't-serviced-...