Questions tagged [oil]

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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Diagnosing oil consumption on Nissan VQ35DE (350z / G35)

I have a 2004 Infiniti G35 6MT coupe. Nissan VQ35DE engine with a bit over 156,000 KMs (about 96,000 miles). Since I bought it, I've noticed some oil consumption at a rate of about a litre every 4,...
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2answers
131 views

Are More Recent API Oils always “Better”?

The API ( American Petroleum Institute ) provides certifications for engine oil. Such certifications range from SA for 1930's era vehicles up to the current standard SN. The above linked document ...
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307 views

'05 Peugeot 307: Oil in the Coolant

I have a 2005 Peugeot 307 hatchback. Back in May, the head gasket blew so I had it replaced. When the head gasket blew, oil was leaking out and the coolant became very gungy. This gunge was cleared ...
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212 views

My 05 F150 engine knocking

Drove it - reached destination and started knocking - NO oil on dipstick. Put in 5 quarts of oil - ran fine until reached next destination - started knocking again - oil was present this time - drove ...
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232 views

Running in oil a for light diesel engine (Japanese, Toyota 3L)?

What would you use as a running in (break-in) oil for this engine? I have this engine, and it has just been reconditioned, new pistons, conrods, crank and bearings.
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65 views

aluminium particulates in manual transmission oil

I've removed the center differential part(s) from a 2001 subaru legacy to find that one of the internal parts lost its alignment/position (began to move axially) and began wearing away small areas of ...
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63 views

Toyota auris 2010 stalls when you remove oil cap while engine is idling

I was inspecting a used Toyota Auris (2009-2010). I turned the engine on and with the car idling I removed the oil cap from the engine. The car stalled within seconds and the engine almost shut down. ...
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3k views

Engine over filled with oil

This is a 2007 Vauxhall Antara 2.0 L CDTI. Four months ago I took my car to a local garage chain to do some tyre adjustments and thought I might as well let them change my oil and oil filter. All ...
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1answer
158 views

Rebuilt engine: cranks but lots of white/grayish fumes

So today I cranked the engine I was rebuilding (Skoda Estelle/120 '72, RWD, rear mounted engine) and while it started, yes, but not without some struggling, I got a lot of white or light grayish fumes....
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150 views

high oil consumption and oil pressure, possible PCV system malfunction

I have a 1993 C1500 4.3L manual transmission. My oil pressure has been reading very high (fluctuates, but generally goes beyond the upper range of the gauge). I had the truck in the shop and the ...
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6k views

Locked Motor - Can it be fixed without replacing the engine?

First of all, I WILL APOLOGIZE if I get too lengthy. Drove the car, parked and was away from it for about 10 minutes. When I tried to start it, lots of lights came on and went off right away but ...
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76 views

1998 Plymouth Voyager

The oil pressure cluster light is coming on and the chime sound as well,the oil level seems fine. Wondering what the problem may be? The 1998 voyager has 138,000 miles and next oil change is not due ...
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604 views

Hyundai Santa Fe - Engine Oil Pressure Valve

Does anyone know where a 2007 Hyundai Santa Fe CRDI Engine Oil Pressure Valve is?
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29 views

How to analyse engine oil analysis results?

I got an engine oil analysis done on my 1991 CAT 3116 with 124,000k miles on it. I received a sheet of what I presume to be the result of some kind of spectrometry. As I'm not an analytical chemist, I ...
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42 views

Clicking sound in engine, very strange evolution

I have come here in hopes to get some help regarding my impala. It is a 2006 Chevy Impala with a V6 engine, I was out of town for 2 weeks and when I got home I got in my impala and stated her up. it ...
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27 views

AMC 258 engine after a rebuild is suddenly burning so much oil that it fouls plugs in 2 days

1983 AMC 258 cubic inch newly rebuilt (1 year ago with low miles) suddenly has started burning so much oil that plugs are fouled in 2 days. What is the cause?
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2answers
67 views

Can you always use a higher API S code?

For one of my cars in the recommended oil it says 'Use API sj, sl or above' and for my other older car(99) it says use 'api sg, sh, or sj' but doesn't say above. Based on what I have seen it seems ...
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17 views

2002 mazda tribute rebuilt engine and new oil cooler doesn't fit right

I recently bought a totally remanufactured engine, and to stay within warranty, they make you buy a new oil cooler. I bought an after market one, and it doesn't fit right. The rubber rings have been ...
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135 views

oil in my cooling system liquid is my TURBO damaged

I have a kia forte 5 sx 2016 with about 31000 miles on it. Last week the 4 spark plugs broke. I've got them changed under my guarantee. I knew something was wrong but the dealer didn't want to look ...
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0answers
416 views

V70 reported low oil level, but stick says it's fine and now the message is gone, what happened?

I have a 2006 Volvo V70. When I was driving yesterday, the car displayed a notification that the oil level was low and I should top it off. Since this was a non-urgent notification (as opposed to a ...
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0answers
118 views

Diagnosing Engine Knock

My 2003 Volvo XC70 had a slight engine knock for about 5000 miles but never showed any signs of damage to the engine. Oil was fine and it only made the sound in around the 2500-3500 rpm range. One ...
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42 views

Honda Nighthawk 250 oil does not rise to the cam lobes

I have a Nighthawk 250 model 1993. I have the problem that the oil not rise to the cam lobes of left cylinder. My actions: 1. Change the oil pump to a new one. Works fine 2. Check the little orifice ...
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2k views

Affect of burning oil on O2 Sensors

I got a P0420 code and took my car to have a service and an investigate. I was told my car failed an emissions test and that is likely because the O2 sensors have failed causing a rich mix and higher ...
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76 views
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BMW 335xi has this burning oil smell wh/is getting worse

My husband had insisted it is the turbo chargers overflow area? I'm unfamiliar w/ bmw's but grew up working on engines and cars w/dad and brother. This smell is simply not right. Getting chokingly bad....
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36 views

Valve tap after engine is warm

I have what i believe to be a tappy valve in my 1991 4Runner, V6. It's quiet when the engine is first started, before the oil is warm, presumably. Once the engine up to temp the tap comes back. Does ...
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1answer
39 views

Oil on top layer of coolant Reservoir

So recently when I got an oil change, they checked my other fluids and notified me that there is oil in my coolant... again. Last year, I noticed oil in the coolant and took it to a mechanic, they ...
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5answers
72 views

Can I keep oil filter for longer?

I have 09 Altima with 135k miles and it now consumes way too much engine oil to the extent the oil was all gone for next service! So now I make sure to fill it with more oil every month. My question ...
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1answer
63 views

02 Honda civic LX 1.7-1.8 not sure. oil is leaking into coolant/radiator

so my wifes car had ran into some issues about 4 days ago when her car quit on her while driving from our sons school. she said that the oil light had came on moments before the car gave out and shut ...
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2answers
56 views

2009 Mini JCW low oil does this cause carbon build up?

End of Nov 2018 I took the Mini for tire rotation and told the garage I was taking a road trip and to check all fluid levels including the oil. When I picked it up they confirmed this was done. The ...
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28 views

Polo gti 2013 smoke when pulling away slow

My polo GTI started giving a puff of smoke white/grey maybe when I pull out slowly or roll down hill, but if I drive the car hard it doesn't smoke. It also uses around 500ml oil in month or two. I ...
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1answer
303 views

Rod knocking, out of oil, or both?

So, I had noticed what sounded like rod knocking in my 2004 Nissan 350z with 140k miles. IT got progressively worse, and I went to look around. I ended up finding all of my oil gone, seemingly due to ...
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27 views

Euro Long-Life Synthetic in a Hyundai?

tl;dr: Does it make any worthwhile difference to put European oil in a Korean car (Hyundai), or would any other synthetic work just as well? My Vehicle Info 2008 Hyundai Accent, GLS 4-Door, SEDAN 4-...
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1answer
284 views

Will leaking valve seals harm an engine?

I have a Nissan VK45DE engine with some oil consumption issues that I think are leaking valve seals. What harm will come to an engine if used long term with leaking valve seals other than the ...
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3answers
112 views

I accidentally put about 3/4 of a quart to much of oil in my car

Would this do any damage to my car? It is a 3.8 v6 Pontiac Grand Prix.
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1answer
433 views

Briggs and Stratton “Just Check and Add, never change oil” engine

Recently a relative was bragging about their new mower, with a new Briggs and Stratton "Just Check and Add" engine, with no oil change recommendation. Better than sliced bread. I remember when a ...
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83 views

Removal of oil filter rotor lock nut and washer on 4 stroke

I am currently attempting a transmission repair on an old honda xl125 motor. I have been following the clives manual with very little issue. However upon attempting to remove the clutch I am being ...
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32 views

Outside temperature vs recommended oil viscocity

Recommended oil viscosity is 10W30 for my motorcycle but temperature outside is getting higher these days it reaches upto 38 degrees on some days.Is is fine to continue to use 10w30 grade oil or I can ...
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45 views

Does exhaust smoke always acompany engine burning oil?

Car(civic vti) is currently loosing a lot of engine oil. I've already put 4 liters in over a few months\maybe 1000k miles. Mechanics cannot find any leaks but they couldn't see smoke coming out of ...
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338 views

Difficulty seeing oil on dipstick

On my 2009 impala 3.5L and 2004 f150 4.2L. I shut them off and wait a couple minutes and check the dipsticks, and it's always hard to see if oil is on there (seems to scrape oil from somewhere while ...
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191 views

Mark II Can bad oil stall, rough idle engine?

My 2001 Toyota Mark II Grande, Engine TA-JZX110, Automatic Transmission, 2.5ltr engine has been stalling and reflecting the check engine light, and showing two codes on diagnostic machine : VVTi ...
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0answers
210 views

White smoke (lots) from 95 4Runner tailpipe

I have a SEVERE oil leak on my 95 4Runner (v6 3VZE). I put a quart in every day or two. Yesterday I felt she needed extra love so I put in two quarts. Now she's billowing huge plumes of white gray ...
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20 views

Understanding Oil Certifications

I am trying to figure out what certification VW's Certs translate into as API, if that's even possible? Looking for oil for a '08 2.0T Passat, and it looks like it's calling for VW 502 cert. Some ...
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79 views

vw polo 6n2 oil level decreasing

i have a Volkswagen polo 1.4 engine i have two problem first in oil level, the oil level is decreasing every few days and there is no oil leak or no smoke going out from the exhaust, and second ...
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244 views

I used sae 30 instead of 5w30

I put two quartz of sae 30 and now I'm having problems with changing gears they take longer. What can I do to take it all out and put the right oil. If you can please help me thank you.
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92 views

Scooter 49cc trouble starting at morning

I was wondering why my scooter (Aprilia 49cc) is having trouble with starting at morning, To make this easy to understand : - I only have one shot with start bottom, first attempt, my scooter start, ...
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89 views

What is the best oil grade for my engine condition?

I have a mid-aged 300k 3.6L car. I bought it 3 years ago and was using 20w50 oil (I live in Saudi Arabia where tempartures reaches 50c in summer and below 10c in winter) The 20w50 was so heavy on my ...
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0answers
188 views

Excessive Oil Consumption, is there a leak?

I own an Audi A4 2008 and lately every few hundred kilometers the oil runs low (so I add oil of course). I tried to look for oil marks under the car, sometimes I see something that looks like oil and ...
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2k views

Best sealant to use for metal oil cooler hose into oil cooler

I have just spent 14+ hours under my SAAB removing and replacing two oil cooler hoses, one tap of a hammer on a punch on a hose pipe flange at a time. That doesn't count all the research time prior ...
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127 views

Any way to clean engine oil system following possible overheat?

I purchased a car with the intent of fixing it to sell again. It required new fuel injectors, O2 sensors, plugs, cats, computer, etc. Most problems stemmed from a buildup of oil on the exterior of ...