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.

learn more… | top users | synonyms

6
votes
4answers
913 views

High oil warning in Mercedes B class diesel

I have a Mercedes B class diesel 2010. I have had it since August 2015 from a dealer who serviced it, and everything is running fine. I have noticed a warning saying drop oil level, so I measured the ...
6
votes
2answers
28k 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 50-...
6
votes
3answers
17k 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 ...
6
votes
1answer
67 views

What exactly is meant by the phrase “plugging in your engine”?

I have found a relevant quote from here that might be related: Plugged-in engines are already half-warmed when started. Fuel consumption is thus reduced by an average of 15 per cent over the first ...
6
votes
3answers
2k views

What do the numbers on motor oil specifications mean?

What do the numbers and letters in a motor oil specification mean? For example: 0w-30 5w-40 10w-20 Which values are better? Also, sometimes there are additional letters and numbers ...
6
votes
2answers
351 views

Do I really need to care if my car burns oil?

My car, a 97 Mazda 323, burns about a liter of oil per 1000 kilometers, mostly start and stop city driving. Sometimes I see a puff on start-up and sometimes I see smoke while accelerating, but it's ...
6
votes
1answer
7k 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". ...
6
votes
3answers
396 views

Car stored for 6 months shows low oil level after 300 miles

Just bought a car from a BMW dealer and the guy told me it was sitting for almost 6 months before I came to purchase it. When I left the dealership the oil was above the min mark showing green. Drove ...
6
votes
2answers
170 views

Can engine oil type cause a car to overheat?

I own a Peugeot 405. At first I was using 20w-50 engine oils but The last time I went for changing the engine oil I used 10w-40. After that The engine temperature rises constantly and (even when it's ...
6
votes
1answer
63 views

Oil leakage or normal engine procedures

It was raining yesterday and I noticed the typical rainbow colouring of some of the water around my car. Couldn't tell there and then if it was a car body fluid leak or just the water going trough the ...
6
votes
2answers
536 views

How exactly does an increase in engine temperature cause a car to breakdown?

I have an engine temperature gauge on the dashboard of my car (as most people do), but if for some reason the engine temperature is caused to increase (due to a lack of cooling or what have you), the ...
6
votes
1answer
92 views

Why do modern vehicles omit a temperature gauge?

I'm more specifically interested in performance vehicles. My current car has gauges for coolant temperature, oil temperature and oil pressure. The coolant temperature gauge is there so you can tell ...
6
votes
1answer
83 views

Can low gear oil cause a syncronizer not to work?

I've been having a problem for a while on my MTX Nissan Almera with only being able to engage fifth gear at specific speeds, around 68-72 km/h. I recently noticed while changing an inner tie rod dust ...
6
votes
3answers
8k views

Ticking noise when accelerating

I have a Vauxhall Corsa "C" (2003)(EU) which is a standard 16v 1.2 petrol, the engine is chain driven and sits at 50k. I don't think it was well looked after (service wise) in previous lifes. ...
6
votes
1answer
1k 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 ...
5
votes
3answers
7k 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 ...
5
votes
3answers
416 views

How do I tell if I screwed up my oil change?

I just changed my oil in my 2500 HD Silverado for the first time by myself. I've changed my oil in a 2004 Toyota Camry a handful of times, but I always had a friend supervise me. I need to know common ...
5
votes
1answer
338 views

2011 Jeep Liberty ran without oil, did this cause my engine to blow?

I have a 2011 Jeep Liberty and the oil pan rusted out and it was driven for a while without oil. The oil pan was fixed a couple days later. This happened in April 2014, in Oct 2014 the engine started ...
5
votes
2answers
7k 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 ...
5
votes
1answer
60 views

How do hybrid's with all-electric mode typically handle oil changes?

So, I'm researching getting a Ford C-Max Energi. It fits well with my commute range (approximately 20 miles a day). I understand that after the battery is depleted, a conventional motor kicks on and ...
5
votes
2answers
5k views

oil leaks when driving, not while parked

My wife has a 2004 Mazda 6, 2.3 liter 4 cylinder. When the car is parked, oil doesn't pool underneath. After driving for about an hour, we need to add about 1-3 quarts. With this issue, where could ...
5
votes
2answers
94 views

Fixing a gasket oil/transmission fluid leak with epoxy glue - possible reaction with oil?

I'm in Sierra Leone where mechanics have an impressive flair for improvising with limited resources, but a lack of formal training and a cavalier attitude to long term safety. I've had a transmission ...
5
votes
3answers
172 views

I drove my car with the dipstick left out, did I do any damage?

Please guide me. I went for a regular check up of my new Celerio gasoline driven car. The Maruti Workshop mechanic made a mistake. He left the dipstick out after he checked my oil. I figured it out ...
5
votes
4answers
5k 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 ...
5
votes
4answers
11k views

Grinding sound during cold start?

I have a 2009 Honda Accord. Over the past several months, I've noticed a grinding sound immediately after cold-starting the engine. It only lasts for a fraction of a second, doesn't continue once ...
5
votes
3answers
16k views

Which provides better engine flushing, traditional flushing oil or adding a flush additive to old oil?

Background I think that my vehicle would probably benefit from having it's lubrication system being flushed out at it's next oil change. Checking prices of flushing oil at local suppliers I noticed ...
5
votes
1answer
91 views

Are there any vehicle engines that don't have a mechanical oil pump?

I my answer to How to move car a small distance without tow dolly I suggested putting a manual transmission vehicle in 3rd gear while towing with a rope or strap to apply back pressure and help keep ...
5
votes
2answers
2k views

Cadillac CTS 2007 3.6 oil consumption

3 months ago I bought Cadillac CTS 2007 3.6 with 31k miles, next day I went to local garage and changed the oil, filters, etc. I have driven 7k miles since and when driving last week car started ...
5
votes
1answer
119 views

Is it safe to run a car with the oil level above max?

I drive an opel/vauxhall insignia. Often when i come to check the oil i find the oil level is above the max rating, I believe the oil level is also somehow raising (possible diesel slipping past the ...
5
votes
3answers
128 views

Oil burning: differenciate between bad valve seals or piston rings

My Toyota Vitz 2007 burns engine oil. I replaced the PCV valve but it didn't help. As per the answer to my previous question, this could be either due to bad piston rings or bad valve seals. What ...
5
votes
1answer
63 views

Motor blown after first oil change of the season after sitting all winter

My teenage son bought himself a D105 tractor several years ago. After the winter, he pushed it onto our driveway, and we completed an oil change and lube. Afterwards, he started up the tractor, drove ...
5
votes
1answer
84 views

I have engine oil in my coolant. What might be the reason?

I have purchased a pre-owned car. After the purchase I saw there was engine oil in the coolant reservoir and also the coolant level is going down slightly. Engine is not heating up. What do I do? ...
5
votes
1answer
90 views

Civic R18A2 oil consumption

Looks like my Civic burned or lost 2L of oil in the past 6 months, I think that is excessive. At previous oil change garage mechanics advised me to use 5w30 viscosity oil because 0w30 is too thin. I ...
5
votes
2answers
589 views

How to clean engine when oil is contaminated with metal shards?

During a recent oil change Istripped the oil pan bolt. It took a bit of trial and error for me to realize the stripped hole was a 14mm 1.25 thread so I got a tap and rethread it to 14mm 1.5 thread ...
5
votes
2answers
74 views

8-9 Quarts of oil in engine after adding a stupidly high amount. What kind of damage can I expect?

To preface this, I was a complete idiot. My 2002 Honda Accord was a couple thousand miles over the recommended oil-change period and I was being pestered about checking the oil, as it could be fairly ...
5
votes
1answer
99 views

Audi A3 2001 1.9 TDI ASV - which motor oil to use?

Which oil I should use? I have no reference guide in which I could tell what kind of oil to use. I live in Slovenia where lowest temperature is around -15°C and the highest at around 40°C. The thing I ...
5
votes
1answer
207 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 ...
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 ...
5
votes
2answers
5k views

High / fluctuating oil pressure causes?

My girlfriend has a 1997 Pontiac Bonneville SSE (3.8L GM 3800-II, non-supercharged). It ran low on coolant a few weeks ago, and started to overheat. I refilled with coolant, but the next time I was in ...
5
votes
1answer
6k views

Oil leak - just keep refilling?

I have a 1995 Honda Accord with over 170k miles on it. I have the oil changed regularly every 3000 miles. My mechanic noticed the oil levels were pretty low at each oil change and took a deeper look. ...
5
votes
1answer
140 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 ...
5
votes
2answers
229 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 ...
5
votes
2answers
744 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 ...
5
votes
1answer
245 views

Engine consuming oil and white smoke comes out when starting the engine while cold

my car has been consuming oil for a while now but only recently has started to smoke when it is started while the engine is cold. I thought that maybe because I am using a synthetic oil in a high ...
5
votes
1answer
282 views

Yamaha FZS Ver- 2.0 Engine Seizure

I gave my bike (Yamaha FZS ver 2.0) to an authorized service center for it's first-time service. The mechanic didn't fit the drainbolt (which is under the engine) properly causing the engine oil to ...
5
votes
2answers
473 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
38 views

Toyota corolla verso 1.794 petrol vvt-1-t2 [closed]

Recently Purchased Vehicle @milage 81.075 in the past vehicle has consumed 5.25 Litres of oil a full oil composition test was carried by my Garage. They also advise it is an uneconomical repair it has ...
4
votes
4answers
12k 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 ...
4
votes
2answers
2k views

Are there different kinds of 10W-40 oil?

I was given a used riding mower as a gift, and the other day I started to do some of the yearly maintenance as recommended by the owner's manual. When I got to the part about changing the oil, I saw ...
4
votes
2answers
494 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 ...