26 votes
Accepted

I ran my car on almost no oil for a few weeks before realizing the problem. Now what?

It sounds as though you were low on oil, but not out of oil. Your MS6 requires around 5.5-6 quarts of oil, so if you dumped three quarts in to get it up to level, you still had nearly three quarts in ...
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24 votes

Will having a radiator full of engine oil do damage to the motor?

The seller should not be selling the vehicle with oil in the cooling system. That supposed "quick fix" should have been rectified at the earliest opportunity. Have him flush the cooling system and put ...
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  • 1,713
23 votes
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Switching engine coolant with similar properties oil

There's a very straightforward answer to this question: Water has a much, much higher capability to transfer heat than oil. Even if you were able to overcome the safety and design issues brought up ...
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  • 1,124
22 votes

Will having a radiator full of engine oil do damage to the motor?

I would be more concerned about whether engine oil is actually finding its way into the radiator from the engine. If it is, this would be indicative of a compromised head gasket, warped cylinder head,...
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  • 39k
13 votes

Will having a radiator full of engine oil do damage to the motor?

Yes, it's possible some of the seals designed to withstand water and glycol could get damaged I am thinking you are creating a fictitious scenario here, so I'll roll with it. If you filled your ...
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  • 32.8k
12 votes
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Did the mechanic damage our car?

I think Meineke was taking you for a ride (pun intended). Here is my reasoning: If it was leaking as bad as they say (or showed you) it was, you wouldn't have had any oil in your vehicle when you got ...
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12 votes

I ran my car on almost no oil for a few weeks before realizing the problem. Now what?

When you visit your dealership, have them (and join in if you're allowed into the shop) examine the oil after it's drained. This is important to ask beforehand since some shops use a large funnel/...
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10 votes

Cylinder leak down test to detect oil leakage

You can do a leak down test but look at your spark plugs first If your burning oil you will see it on your spark plugs. They will be black and have buildup on them. If you find one or two that look ...
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  • 32.8k
9 votes

2004 Subaru Forester black smoke oil not accelerating

It sounds to me like you 'windowed the block'. When you lost oil pressure, you were at highway speed, so your engine was spinning decently fast, and every revolution without oil does more damage. I ...
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  • 8,403
7 votes
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Can camshaft seal leaking hurt timing belt and cause sudden engine breakdown while driving? - Volvo XC90

To answer your questions, if there is a real leak, then yes, there is a problem. The oil will cause the belt to deteriorate and possibly slip. When it does, it is catastrophic. Pistons slam against ...
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7 votes

Cylinder leak down test to detect oil leakage

I'm wondering if you are having an issue with oil bypass, as in going through the breather/PCV and ending up getting burned through the intake. A simple catch can would prove this out for you. This ...
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7 votes

Cylinder leak down test to detect oil leakage

Not a desired answer, but with no leaks (to ground or into coolant) it's possible that your engine is just using/burning what some manufacturers would consider a normal amount of oil: How much is ...
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  • 678
7 votes

2004 Subaru Forester black smoke oil not accelerating

My son had an engine failure on a 2015 WRX, same exact symptoms, connecting rod broke and punched through the engine block on the top side, breaking open an oil galley. 10K mistake after playing with ...
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  • 7,940
6 votes

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

If there was no oil leak before the oil change, then there is a possibility of wrong repair done at the workshop. Generally, for changing oil, the oil pan need not be touched at all, except for the ...
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6 votes
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Cadillac CTS 2007 3.6 oil consumption

Unfortunately, oil consumption in these engines can be quite large. GM has put out service bulletins which says that engine use up to 1 quart per 2000 miles is perfectly normal. I found some ...
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6 votes

Engine temperature low when it's cold outside

Oil leak is unrelated. You should fix that. (: There are various possibilities: The temperature gauge is faulty or the sender that sends the gauge the temperature reading is. Test: Block part of ...
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  • 3,363
6 votes
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Is the dye used for diagnosing oil leaks harmful to an engine?

Yes this is completely fine and what the dye is designed for. You should be able to get a kit at your local auto-parts store.
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6 votes

Gear Oil coming out of the breather accumulator after water wading

Thoroughly flush the diff and transfer box - then refill with the correct type and amount of oil. To prevent this problem - extend the breathers to either inside the cabin or the roof line. This was ...
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5 votes
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Oil leakage or normal engine procedures

Just reading this forum post, it appears your issue is a very common issue with your engine type. There is a main oil galley which runs right up through that corner of the head. This feeds the various ...
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5 votes
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Oil leaking into spark plug well despite new gaskets -- is RTV a solution?

I'm not a fan of RTV Others that are professional and hobbyists don't agree with me but, some do. I just don't use RTV, it's like duct tape to me. I get a physiological reaction to the acronym. I ...
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  • 32.8k
5 votes

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

If it is the oil pan bolt holes that are stripped out, using a Heli-Coil thread insert is the professional permanent solution. Heli-Coil is the inventor of this repair method, but there are other ...
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  • 7,940
5 votes

Is messing up this gasket my fault?

New seals that are too large are unlikey to fit. You need one that has the correct internal diameter. You shouldn't need anything to hold the seal in place. You might benefit from a small wiping of ...
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  • 8,612
5 votes

Oil leak after oil change

I work in a service centre - either the sump plug was put on finger tight and then the tech forgot to tighten with a socket or he didn't use a collapsible washer or the washer was faulty or depending ...
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5 votes

Oil is leaking to my spark plugs. how do I clean it?

Spray some brake clean in the plug well. Hold a rag over the plug hole and hit it with compressed air. You could also use a small tube and a fluid extraction pump. Or you could stuff rags down the ...
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  • 10.7k
5 votes

Oil in my radiator, but no water in my oil

The problem, in general, is that there is a leak between the lubrication system and the cooling system. There are only few obvious where this can happen: One is at the head gasket where oil can leak ...
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  • 14.3k
5 votes

Switching engine coolant with similar properties oil

Water has the nice property that it boils at a fairly low temperature, so the vapour pressure rises quickly with temperature and it is easy to design fail-safe over-pressure protection (a simple ...
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  • 2,929
4 votes

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

Odds are they did a shady job and are now trying to rip you off. No reason why it should be like that unless if they did that by accident or (worse) intentionally. If you can, take a look underneath ...
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4 votes
Accepted

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

I agree with @knocksAndMisfires - it sounds strange that the oil pan gasket would have to be touched for a routine oil change. If the oil pan/lower sump was removed then this may necessitate a gasket ...
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  • 39k
4 votes
Accepted

My car doesn't leak oil but I have to tap it off every 500 miles

The culprit is usually shot piston rings. They act as a buffer between the combustion chamber and the bottom half of the engine. If they go, oil can seep into the combustion chamber and get burned up ...
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4 votes

Oil Pressure Sensor Leak

An oil leak where you see a drip form, but it doesn't drip is not an immediate problem. If this is something you don't want to fix right away, there shouldn't be a huge issue. There are two concerns: ...
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