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Heating the oil - Cars & Trucks

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  • Stan Ford Dec 03, 2016

    Hi Maye Whitfield, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?Cant understand why you need to heat the oil.



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If the heat exchanger for oil heat is at the oil filter it not likely. The coolant will be an external leak. Sounds like a head gasket failure. Due to age(1999) Thermal Shear probably occurred or electrolysis condition in cylinder sleeves

May 24, 2017 | Cars & Trucks


How to chose oil for your engine.

There are many types of oil on the market from many different makers and each will claim to be the best oil for your car. They'll claim to have the best year-round protection even when they don't know where you live. As engine technology improves, perhaps the oils will improve too. Until then, here is some helpful information on buying the propper weight of oil for your auto.

When chosing oil for any type of engine, the important thing to consider is the thickness of the oil which is identified by the oil's "weight.". The higher the weight - the thicker the oil. Got it?

Engine oil serves two functions. It lubricates the moving parts, and it helps keep the engine from overheating by reducing friction between those moving parts. When you pour oil in your engine, it drains right down to the bottom and settles in the oil pan. When you start your engine, that oil is basically splashed around to coat whatever is near.

Oil behaves like pancake syrup. When it's warm, it's thin and runny. When it's at room temperature, it's thick and not quite as tasty. A thin oil (low weight) it will drip back down into the pan more quickly than a thick oil and therefore won't cling to those moving parts quite as long. A low weight oil of 10w would be good for sub-zero temperatures. The hotter the engine gets, the thinner the oil gets. So, you need an oil that will be as thick as your engine can handle so that as it heats, it won't become too thin. If you live in a climate that is hot year-round, use a thick, high-weight oil.

Some will say that if the oil is too think, it won't run down fast enough to carry away the heat from the engine. Yes, that is true. However, oil is not designed to cool the engine. Oil is designed to prevent heat buildup. There is a big difference. Oil is not a remedy for heat, it is a prevention of heat.

Your car's engine does not get hot from the small explosions of gas burning inside the engine. That heat is expelled with the exhaust air. Your car's engine gets hot from the heat that is generated by the friction of the moving parts within. If you reduce the friction, then you reduce the amount of heat that is generated. That is what oil does. Therefore, it needs to coat, stick and stay put.

on May 18, 2012 | 2001 Dodge Ram 2500 Truck

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Hi I'm having this message, 'low oil pressure' when temp go to suitable temperature my car Peugeot 407

The engine bearing clearances expand with heat which, if excessive, will lower the oil pressure. The spring in the pressure regulator in the oil pump will cause the pressure to drop for the same reason. A partially plugged oil intake screen will work in conjunction with the oil pump to cause it too.

Nov 15, 2015 | 2009 Peugeot 407 2.7

1 Answer

Trans temp high

start by cleaning your radiator cooling fins first and have the core checked, if in order start by replacing all filters, drain the oil ,flush the whole system with approved atf oil, oem, fill ,test transmission , keep hand brake on, engage drive selection then reverse, the switch off and check oil level. if dropped fill up but do not over fill for it can cause heating, drain if needed. once all completed that a drive and test, if still heating up have the torque converter tested. Normally it's either too much oil or too little/oil lost it's viscosity through over heating

Sep 18, 2013 | 2000 Jeep Grand Cherokee

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Oil getting too hot

I guess my first question is - how do you know the oil is too hot ?
Engine oil is designed to handle several hundred degrees of heat, so unless the engine coolant is over 275 degrees the oil should be functioning correctly.
If you have worn bearings you can loose oil pressure as the oil heats up because the oil gets thinner. And if the oil pressure drops below 5psi you could loose power to the fuel pump.

Jun 11, 2013 | 1987 Ford F 150

1 Answer

Hi I need help with my 2004 Freelander TD4: suddenly blue/white smoke coming out the back of the car ( the car did not over heated the heat gauge was at normal position) notes that there was oil leaking...

cracked block. once it heats up the crack gets bigger and the oil gets thinner which makes more oil burn. run car without the oil cap on and see if lots of air/ oil comes out if so thats blow by and you need a new engine.

Mar 06, 2013 | Cars & Trucks

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I have a 2000 Mercury Cougar and the gauge inside tells me that the engine is over heating, no heat is coming from the heater when I turn it on, the fan for the engine is running at full blast, the engine...


The overheating and lack of cabin heat both point to a failed engine thermostat which would be stuck closed. At the warm up stage, the coolant stays in the engine block to bring the engine to efficient operating temperature, then it opens and circulates the coolant through the radiator and heat core. If the thermostat is stuck closed, the engine will overheat, and coolant will never reach the heater core, and you will not get cabin heat.

Blinking oil light at idle which goes away during driving could be a low oil level, but may also be a drop in oil pressue. You could have a clogged oil fliter (at best) pickup tube, or a failing oil pump.

Mar 10, 2011 | 2000 Mercury Cougar

1 Answer

Over heating , no water in oil , no oil in water

fan clutch could be bad if it doesnt have electric fans. thermostat could be stuck shut. water pump may be bad s the impeller inside can come loose from the shaft the belt drives. dont drive until fixed as any new motor noise is sign of potential internal motor damage and may lead to engine failure.

Jun 04, 2010 | 2003 Mitsubishi Outlander

1 Answer

Blinking oil light, when oil is full

The oil gets lighter as the engine heats up.
Was this problem there before you changed the oil? If no, thn the grade of the engine oil you have used (replace) could be of wrong specs., try using a higher grade.
Hope this helps!

Jun 19, 2009 | 1994 Ford Taurus

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