My pajero io 1.8 L (MPI) is burning oil and smoking! HELP!

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FranTilak
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Hi all,

I recently bought my Pajero io. It's the MPI version, 1999 1.8L. The first issue occurred after the oil was changed. In exacty 2 months, there was not a single drop of oil. My mechanic had used 20W-50 then. He told me to replenish and I did so with 4 Quarts. Again, two months after the same thing occurred! The check oil light started to blink on and off this time around. When the vehicle was allowed to cool off, there wasnt a drop found. I decided to get another mechanic's input and he advised me against such a heavy oil and recommended 10W-30. I put 3 quarts this time since the routine service and oil change was due. Now, not a full month and I realise I was smoking a lot. Having realised when the oil is low it usually smokes, I went back to the mechanic. The oil was completely burned!

It's crazy to think that a quart of oil is burned less than a week, thats very costly. On top of that, there is still a lot of smoke coming from the exhaust. Usually, after replenishing oil, the smoke goes away. However, this time it gets worse when accelerating up a slope. The smoke is blue. I'm from the Caribbean, it's very hilly and mountainous so I cannot prevent travelling up hills. Any suggestions and insight into this? Very much appreciated!

 

FT

fordem
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Find yourself a GOOD mechanic ...

That "check oil" light is not a check oil light, it's a low oil pressure warning, and it should never come on when the engine is running.  You need to check the oil with the dipstick and check it frequently, any time it gets near the low mark top it up to the full mark.

Engines that burn oil usually do so because of worn rings and/or leaking valve seals - and any mechanic who knows what he is doing will know this, as well as how to test for it, and will also have the tools to do it.  The first test is going to be wet & dry compression tests - my expectation is that the compression tests will reveal that the oil is passing the rings, quite likely because the engine is worn - time to take it out, disassemble & measure the bores, you're probably looking at a complete rebuild - rebore, new pistons & rings, along with new bearings.

RaiRai
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SAME PROP..ON TOO MUCH OIL CONSUME PLUS SMOKE EXHAUST

Hi from Micronesia,

TROPICAL WEATHER IS WHERE IM @..AM STILL ON THE VERGE ON THAT PROBLEM FOR QUIET A WHILE..WITH THE ADVSE OF MY MECHANIC..HE SUGGEST THE VALVE SEALS WOULD BE THE CAUSE ,SO HE RECOMMEND PURCHASING SOME,16 VALVES SEALS IS WHAT HE RECCOMMNDS,BUT AM THINKING LIKE A A WHLOE GASKET KIT WOULD DO IF AM RICH...THAT WOULD INCLUDES THE VALVE ALSO..I THINK...

SO IF YOU HAPPEN TO FIND ONE AM SEEKING ASSISTANCE HERE..APPRECIATE...THANKS

hS

Ojak
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blue smoke

If the engine smokes excessivley under power (as going uphill) its likely to be the piston rings, if it smokes the most right after starting its more likely to be the valve seals. Bad piston rings will let compression through on the cylinder igniting, and this pressure will blow oil from crankcase up past the piston rings of another cylinder. When that cylinder then fires it will burn the oil as well. Valve seals will leak oil from camshaft area down on the valve heads when the engine is standing. This will then burn when the engine is starting but its less likely that oil will go down through the valve seal when the engine is under pressure ie running.

A cracked or warped head will let oil through from the oil leads going to the head into the cylinder. This smoke can be massive, and also often mixed with coolant going into the cylinder in the same way, giving a white smoke.

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