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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5
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1answer
157 views

I used 0W-30 instead of 0W-20. Is it serious?

I have a Nissan Sentra 2014. I wanted to start using full synthetic oil, and the manual said I should use 0W-20. I changed both the oil and the filter (I used this one), and after finishing I realized ...
3
votes
2answers
264 views

Damage from the Brief No Oil Pressure after Oil Change on Start Up

I was taught to fill the oil filter most of the way when doing an oil change. Usually, by the time I put the oil filter back on, I'm pretty annoyed and just put the empty filter on. I do put a light ...
9
votes
5answers
171 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.
11
votes
1answer
372 views

2005 Subaru 2.5 RS - Engine-wise, how damaging is burning oil?

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 the long-term because it doesn't belong in the combustion chamber? I ...
5
votes
4answers
4k 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 ...
3
votes
1answer
113 views

Does E85 fuel increase oil consumption?

I have a 2003 Opel Meriva which I run on 50% gas / 50% E85. According to my own experience and Meriva forums, this is about as much ethanol as the engine can take without tripping the engine ...
3
votes
1answer
125 views

Oil overfill problem/oil foaming

Changed my oil today but like a fool overfilled when topping up, I did not notice this at first as I have a strange dipstick and fresh oil is pretty difficult to spot however I overfilled by around ...
1
vote
1answer
62 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 ...
3
votes
0answers
138 views

Hyundai Santa Fe - Engine Oil Pressure Valve

Does anyone know where a 2007 Hyundai Santa Fe CRDI Engine Oil Pressure Valve is?
3
votes
3answers
498 views

2001 VW Jetta 1.8T oil light on, but oil level is full

Basically the situation is as described in the title, the oil light comes on intermittently, but when I check the oil it appears full. What could be causing this?
2
votes
3answers
146 views

Oil pressure and fuel pressure formula

Can someone give me a formula to calculate Oil and Fuel pressure of a car engine? Consider a small passenger car. I have information like Total distance travelled, speed, rpm, MAF, MAP, Intake Air ...
3
votes
2answers
575 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 ...
5
votes
2answers
454 views

Burnt oil smell when revving engine

When accelerating hard and revving engine around 2000-4000 rpm I smell burnt oil smell from my A/C. The smell is similar when I open the oil filler cap or dipstick. Did hunt for oil leaks and solved ...
5
votes
1answer
135 views

oil level on dipstick

Which way should this dipstick be placed? When placed in with the bend facing towards the engine it gives a different reading from when placed facing the opposite way. There is not a great deal of ...
6
votes
1answer
990 views

Car leaks oil when driving, Oil from exhaust pipe

Car leaks oil when driving not while parked. The bottom of the vehicle is covered with oil and there's white smoke coming from tail pipe when driving. It sat and there no oil puddle in garage but ...
2
votes
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
4k 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 ...
4
votes
1answer
272 views

What are the effects of excessive oil changes on an oil pump? (read description)

I would like to know what the effects on an oil pump are when oil is changed. Obviously after changing the oil filter the engine will run dry without oil pressure for the first few seconds while oil ...
7
votes
4answers
187 views

2002 Ford F350 Superduty 7.3L Turbo diesel using a quart of oil every 43 miles

This Diesel engine has been rebuilt and it didn't use any oil till the HPOP went out. I replaced the oil pump and then I noticed my turbo when going up a hill and the Turbo would sound like a sneeze ...
4
votes
1answer
4k views

High oil pressure after oil and filter change

I recently changed the engine oil and filter in my Westerbeke diesel. I gave it the usual (and specified) 4.5 quarts of SAE 30, specifically Chevron DELO. Now when it starts up it reads 80 psi of ...
1
vote
2answers
67 views

Oil on radiator cap what could be the cause for that?

I have recently discovered that there is oil on the radiator cap. I am driving a Toyota corolla with 4A engine which is automatic. What could be the cause for that?
1
vote
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-...
3
votes
1answer
245 views

Jiffy lube put too much oil in my car [duplicate]

I had an oil change at jiffy lube at 10,000 miles. I have just gone to another jiffy lube and was told that the oil is one inch too high. I have not added any oil. I have driven in normal conditions ...
1
vote
2answers
151 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 ...
5
votes
2answers
204 views

Can I use Turbo Diesel oil in my Petrol car?

I need to top up the oil in my 2003 Opel Agila with some 5W-40 oil. However, the only oil that I have are: Mobil 1 Turbo Diesel 5w-40 Halfords Ford Oil 5w-40 However, I have a Vauxhall/Opel Agila ...
9
votes
4answers
4k views

What happens if unsuitable oil is used in a vehicle engine?

I recently heard an urban legend-like story about a guy in a developing country who decided engine oil was too expensive and so used some vegetable oil instead. The story says the car ran for some ...
3
votes
1answer
222 views

Ticking/clicking when accelerating 1997 Dodge Caravan

My caravan began ticking when accelerating yesterday. It ticks fairly loudly when accelerating and much softer and slower when idle, or slowing down. Ticks slow and steady when idle or in park. Does ...
2
votes
3answers
271 views

Can a performance air filter cause a car to burn oil?

My oil light recently came on in my car. I parked on the side and checked it. There was none on the stick. I added 1 liter and drove about 500m to my garage. I asked him to do an oil change and to ...
1
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 ...
20
votes
7answers
87k views

What are the risks of overfilling a small engine with oil?

I recently overfilled a 4 stroke lawnmower engine with oil. It has been run for about 1.5 hours while overfilled. It smokes a lot right after being started but after 30 seconds or so the smoke clears. ...
1
vote
1answer
430 views

Can a crimped or improperly-routed turbo oil return line cause smoke?

After my car runs for awhile, it starts intermittently blowing smoke out of the exhaust, and from under the hood (near the turbo, but it's difficult to tell exactly where it's coming from). Problem ...
1
vote
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 ...
0
votes
2answers
2k views

How often to change oil if vehicle gets under 1500 miles per year? [duplicate]

For non-synthetic oil, how long can you go without changing the oil if you regularly only use a vehicle a couple times per month, for 30 miles per drive? That's a total of only 1000-1500 miles/year, ...
2
votes
1answer
222 views

How long can I keep motor oil for before it needs to get put in the car or thrown out?

To save going to the auto shop each time I need to do an oil change, I'm thinking about buying in bulk. Though I'm unsure if not using the oil for 6 months to a year, and only then putting it in the ...
3
votes
2answers
121 views

Vauxhall corsa diesel leaking oil

I was driving to work this morning & my engine oil warning light appeared on my dash. I assumed it needed a top up. When Parking up at work I noticed that oily black water was pouring out under ...
2
votes
3answers
390 views

2004 Subaru XT under powered and smoking after oil change

Over the weekend I traveled home and back: about 140mi each way. About half way there the engine light came on, and, realizing it had been about 4500 miles since my last oil change, I added oil to the ...
3
votes
1answer
76 views

Can I use Dexron III H for power transmission requiring Dexron IID/III?

I've got a Freelander 1999 2.0L DI. I need to top up some power steering fluid. In the manual it says to use Dexron IID or Dexron III. I'm wondering whether I can use Dexron III H (e.g. Castrol ATF ...
1
vote
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 ...
4
votes
1answer
40 views

Oil pressure low on an 84 Ranger

I've recently changed the oil and filter on my 84 Ranger 2.8L V6. I used 10w-30 dino oil and filled it in range on the dip stick. I noticed that after I changed the oil, the oil pressure gauge (on ...
4
votes
4answers
17k views

Oil leaks after oil change - shop says engine oil pan gasket needs to be replaced

I brought my 2000 Honda Civic to my local Castrol shop for an oil change. After leaving for work the next day my wife told me there was a three foot wide pool of oil where my car was. I moved my car ...
1
vote
1answer
871 views

Difference between mineral engine oil and synthetic engine oil [duplicate]

I would like to know the exact difference between mineral engine oil and synthetic engine oil. Why is it advised to use mineral oil for the engine when the bike is new and later switch to synthetic ...
3
votes
4answers
2k views

how to clean up spilled oil?

I changed the oil in my pickup a couple months ago, and had about a quart of clean oil left in the container when I was done. I don't have a garage or other handy place to keep stuff like this, so I ...
19
votes
4answers
219k 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 ...
4
votes
1answer
2k views

Why is this motorcycle burning oil, and how can I get it to stop?

I have a newbie question for you. I'm considering buying a 2004 Yamaha TTR600RE- a single-cylinder, air-cooled dirt-focused dual-sport bike. It's perfectly set up for adventure touring, which is what ...
2
votes
2answers
102 views

Oil level increase and in few days drops to nothing

I have an 01 mustang gt . Two days ago I checked the oil level in the dipstick when my car was warm and it was way above the maximum level . I parked it and checked it again today the oil level was ...
4
votes
2answers
440 views

What damages may I have caused draining oil by filter?

My ATV oil drain plug is an allen 6mm bolt. The bolt was all rusty, and what I expected to happen happened - I stripped it. Instead of wasting times trying to remove the stripped bolt I drained oil ...
3
votes
2answers
3k views

Renault 1.4L 16v Oil Dipstick Location

I have a 2002 Renault Clio Mk2 with a 1.4L 16v engine, which I have owned for 6 months. There is a readout on the dash which indicates the oil level when you first turn on the ignition. My sensor is ...
4
votes
1answer
159 views

Quick Oil Change place overfilled my BMW Z3

Just got this car, a BMW Z3 3.0 from a Tampa dealer and have not even had it 10 days and Check Engine Light came on. I wanted to get the oil changed to full synthetic just in case it wasn't and ...
2
votes
1answer
119 views

Milky Oil in the radiator - Mazda 323

My vehicle has oil in the radiator and I have checked the head gasket matter fact I replaced it with a new one and there still is oil In the radiator may I ask what could be another reason for oil to ...
4
votes
2answers
456 views

Semi synthetic oil engine break-in

I've finished rebuilding the engine of my motorcycle (4 stroke 650cc single-cylinder). For now it runned only once varying between 1000 and 2000 RPM for 5 minutes with a couple of short bursts after ...