Questions regarding the engine lubrication system

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3answers
15 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
36 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 ...
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2answers
33 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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2answers
41 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 ...
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3answers
47 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
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1answer
14 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
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3answers
150 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 ...
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2answers
93 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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1answer
30 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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2answers
31 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 ...
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1answer
83 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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1answer
102 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 ...
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1answer
42 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 ...
4
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2answers
91 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 ...
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2answers
25 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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4answers
206 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 ...
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1answer
69 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 ...
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3answers
84 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 ...
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2answers
541 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, ...
3
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1answer
63 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 ...
3
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2answers
760 views

Is an “oil life indicator” a reliable indicator for when to change the oil?

I have a 2014 Honda Pilot with 3600 miles on it. Historically I have always changed oil in my vehicles every 3000 miles, using good quality non-synthetic oil. Now this Honda has an "oil life ...
3
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2answers
551 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 ...
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1answer
252 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 ...
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1answer
158 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 ...
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4answers
559 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 ...
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2answers
117 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 ...
2
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1answer
124 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 ...
3
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3answers
515 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 ...
2
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2answers
113 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 ...
3
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1answer
109 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 ...
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1answer
514 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 ...
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2answers
405 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 ...
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2answers
345 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
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3answers
148 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. ...
2
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1answer
258 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 ...
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1answer
329 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 ...
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2answers
411 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 ...
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2answers
1k 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 ...
3
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1answer
119 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 ...
2
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2answers
310 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 ...
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0answers
81 views

Chevron Oil Filter, any good?

There are lots of information about what's inside oil filter from several brands... but zero on the Chevron ones. The closest place i have is a BigQ and they told me they use that. I'm pretty sure ...
4
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1answer
81 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 ...
2
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1answer
117 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
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2answers
98 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 ...
3
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1answer
3k 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 ...
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1answer
31 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 ...
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1answer
150 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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1answer
133 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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1answer
89 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 ...
3
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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 ...