Often the first job for an amateur mechanic. Questions regarding changing the engine lubricant oil, or problems resulting from doing so.

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14
votes
4answers
4k views

What actually happens when there is way too much oil in a car engine?

I saw the answers to a question I posted recently highlighting the disadvantages of having too little oil in an engine, but that got me wondering what if the complete opposite were to occur! I know ...
35
votes
9answers
83k views

What actually happens when there is not enough oil in a car engine?

When a car is topped up with oil, it clear to most people that you are supposed to fill it to the recommended amount as specified by the manufacturer (normally on a dip stick). What exactly are all ...
11
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 ...
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 ...
4
votes
5answers
470 views

Is it possible to drain oil pan without getting any oil on your fingers?

This may be a frivolous question or a brain teaser... But I've always wondered if it is possible to so skillfully remove the drain bolt from the bottom of an oil pan upon oil change as to not get any ...
17
votes
5answers
2k views

What happens if I change the oil when the engine is cold?

I have always changed the oil in my vehicles with the engine hot, because the manuals always say to let the engine reach normal operating temperature first. Oil change instructions all over the ...
8
votes
3answers
63 views

What is the proper course of action after over-filling oil during an oil change?

Managed a very stupid mistake: changed the oil on my just-purchased '03 Kia Diesel Pregio on uneven ground. The drain plug on it is on the side of the pan, exacerbating the mistake. Initially drained ...
6
votes
9answers
34k views

How often do I need to change my oil in a VW TDI?

The manual for my 2003 VW TDI says to change the oil every 12 months or 10,000 miles. My dealer says every 6 months or 5,000 miles. Are they just trying to make twice as much money off my oil ...
1
vote
0answers
22 views

Jeep Wrangler Sahara (86,600kms mileage)-Oil change

Is it okay to mix Mopar 5W-20 with 1.5 liter of Total Quartz 5W-40? Driving in the middleast
7
votes
3answers
595 views

Okay to add new oil to old?

Title pretty much explains, I change my oil every 4-6k miles depending on how generous I’m feeling, however will the oil dirty oil that’s already in the sump mix with the clean oil when topping up? ...
3
votes
3answers
24k views

What is the cost of general maintenance on VW Jetta TDI (diesel)

I am looking at purchasing a new, 2014 Volkswagen Jetta TDI car. I have a 35 mile commute to work on pretty much all highway. I want something good on gas mileage, so I heard the Jetta TDIs get ...
4
votes
1answer
318 views

A way to tell if mechanic used synthetic or organic oil?

I brought my car to a mechanic and asked for synthetic oil change. However, now I have realized that mechanic has put a new sticker in my windshield that states that next oil change is due in 3000 ...
5
votes
3answers
5k views

Ford Taurus common oil leak area?

On my last oil change, the technician noted some oil around top and side of the engine block and said there is a small leak. The only way to find where it is coming from is doing the whole dye test, ...
7
votes
3answers
13k views

How to understand different engine oils?

When I went to shop for engine oil, I found many types as such: 5W-30 A5 5W-30 A1 5W-20 SAE 5W-30 10W-30 Also I see other information such as: Fully Synthetic Semi Synthetic Oil Synthetic ...
1
vote
1answer
38 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 ...
5
votes
1answer
45 views

Are mutliple oil and filter changes necessary to 'clean' an engine?

I was having low oil pressure issues on my 2007 VW Jetta. The oil pump filter was dirty because the previous owner didn't did the minimum oil changes. I took it to a mechanic and he did an oil ...
20
votes
11answers
58k views

How can you tell the oil needs to be changed?

I know oil should be changed every 3000 or 6000 miles (depending on the car and conditions) but I'm not all that great at keeping track and I've let the car go for 10,000 miles before and it still ...
5
votes
2answers
88 views

2005 Honda CBF 600 — clutch plates get stuck overnight

I bought a 2005 Honda CBF 600S, rode it for about a week, and then asked my mechanic to check if everything is OK, and to replace the clutch cable. The mechanic also replaced all the fluids, ...
1
vote
2answers
42 views

Oil pan worn/ mazda6

Hey guys I went to the dealership and they told me that my oil pan threads are worn. My question: Is this major thing? And is it safe to drive? Because I told them I'm gonna travel to Florida by my ...
6
votes
2answers
56 views

Oil Change Steps? (check my list) 2014 Impreza

Decided to spend time w/my newly-met dad and do an oil change together on my 2014 Impreza Sport. I told him i want to do the work, myself, with his support. I'm fairly confident and have watched some ...
0
votes
1answer
39 views

What is the correct procedure for removing and replacing the oil pan on a 2006 Corolla?

I believe there is a clog in the oil pan that is preventing me from fully draining it. I'm too cheap to buy a copy of the Hayne's manual for the 2006 Toyota Corolla. The specific information I am ...
6
votes
0answers
82 views

Found small debris in used oil

After I changed the oil on a 2007 Toyota Camry I found debris in the bottom of the used oil container. I used a magnet to test and found the debris to be non-metal. Considering the car age is this ...
2
votes
3answers
1k views

TVS Apache RTR 160 - What Grade Engine Oil Should I Use?

I bought a TVS Apache RTR 160 second hand. I want to know what grade engine oil should i use for my bike. I was suggested to use 15W50. Is that a good choice. The bike has done almost 65000Kms.
1
vote
2answers
23 views

Mixing Oil Types

I have a 2009 Accord with about 122k miles. I have always used conventional oil but recently I had the car to the dealer for a recall that involved replacing engine parts and oil change. However they ...
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 ...
7
votes
3answers
151 views

Excessively over filled motor oil. Ran for a few seconds until smoke came out. Now my car won't start

So last night me and a friend changed the oil on my 2005 Chevy aveo. The only problem was that what we were draining was the transmission fluid and long story short we ended up adding about 6 litres ...
4
votes
2answers
58 views

I changed the oil and might have put too much in. What do I do?

I just bought a Subaru Baja 2005 and decided I needed to change the oil. I got the right oil and filter and got my mom and younger brother to help me. We drained the oil and tried to take off the ...
8
votes
6answers
28k views

Stubborn oil drain plug caused by hot oil?

I'm trying to change the engine oil but running into difficulties removing the oil drain plug. One of the instructions I followed to change the engine oil was to give the car a short drive prior to ...
6
votes
1answer
109 views

In Canada, would doing my own oil change void the warranty?

I'm looking to see if someone can confirm that changing the oil on my car will not void the warranty (I'm in Canada). Links for proof would be nice or get an idea where to look for such things. This ...
9
votes
6answers
30k views

Is it normal for the oil to be dark in color right after an “oil change” in a 10-year old diesel car?

I took my 2002 Jetta TDI wagon to a neighborhood shop about 10 miles, 24 hours ago. They supposedly changed the oil, but the color is very dark, almost black. Definitely not light-colored/transparent. ...
6
votes
2answers
168 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 ...
5
votes
1answer
56 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
2k views

What causes too much fuel for my Briggs and Stratton engine?

I recently bought a generator that uses a Briggs and Stratton 17hp Vanguard engine. Before purchasing the generator, it had not ran in several years. The fuel was stale and the oil needed to be ...
4
votes
3answers
137 views

Engine oil refill volume in Bajaj Pulsar 220

My bike's user manual recommends using 1150ml of "Bajaj 10000" 20W40 1.2 litre engine oil. Needless to say it results in pathetic performance. So I am thinking of switching to Motul 5100 15W40 ; ...
5
votes
1answer
98 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 ...
28
votes
4answers
56k views

How far can I drive with 1 gallon too much oil?

I have way too much oil in my Acura TSX. Do I need to take care of it without turning it on or can I drive it to a service station? If I need to do it in place, I don't have the ramps or a pan or ...
2
votes
2answers
205 views

Changing motorcycle oil

How do I change the oil on my motorcycle? I can see where to check the level, but how do I drain it? It's a Honda CB400 2011 model
4
votes
4answers
85k views

Is it OK to drive Accord with 5% oil life left as indicated?

The 2010 Accord indicates that only 15% oil life is left. Oil level seems to be OK. The driver would rather complete the trip, which is 1400 more miles. At the beginning of the trip there were 20% oil,...
5
votes
3answers
150 views

Why does my garage insist on using an engine flush when changing the oil?

My car handbook lists what should be done at each service, and it does not say “engine flush” should be used. The main dealers don’t use it. Yet most small garages seem to insist on using it at ...
3
votes
1answer
46 views

Effects of loss of oil pressure after oil change [closed]

I'm curious some people say change oil every 3k miles, 6k, 10k and some even every 20k. What seams best for the engine and give the best protection would be the shortest interval 3k however I ...
4
votes
1answer
133 views

How often should I change my Nissan Sentra's (2012 model) oil?

I have a 2012 nissan sentra. Here is the manual. I looked into it but it doesn't seem to indicate the frequency of which I should change the oil. It does mention that the oil change light indicator ...
6
votes
3answers
395 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 ...
2
votes
1answer
428 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?
0
votes
1answer
57 views

Unable to remove oil drain screw

Ok first oil change I've ever done the plug will not come out? I used a bar cheater bar it turns and turns but will not come out. what do i do? I deliver pizza I need this vehicle. Its bad enough I ...
13
votes
7answers
19k views

Engine oil change and getting rid of old oil completely

After running the vehicle for a certain distance usually we will change the engine oil. This will not only give engine new life with the brand new oil but will also get sludge and other sediments out ...
7
votes
3answers
6k views

Is it normal for a car's first oil change to be sooner than the regular interval?

Related: When should I change the oil, as the tech recommends or as my oil change light indicates Do newer cars actually monitor the quality of oil? How does the change oil light system work and ...
3
votes
3answers
618 views

What are the effects of using HD-30 in a car which takes 5W-30?

I recently changed my oil, and I didn't have quite enough oil to top it off so I used HD-30 oil for my last .7 out of 4 quarts total. My car normally takes 5W-30 and after a little research I figured ...
8
votes
1answer
999 views

A lot of smoke coming from exhaust after oil change (mixed old with new oil)

I put new oil in my nissan earlier today (5w-30) and as I was driving I started to smell what I thought was burning oil, and I noticed behind me excessive amount of smoke while driving. I went from ...
5
votes
1answer
204 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
286 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 ...