why does an engine with 2L of displacement need over 3x (6.12L approx.) as much oil as it has displacement? i'm just wondering why. me and one of the other guys on here were discussing this and i just needed to satisfy my curiosity

 

got me. the 2.2l uses 5 quarts and the 2.0l uses 6. wtf?!

 

oil moves around through the engine. it's not just sitting in a 2 liter bucket

 

understandable. but why would a 2L engine need between 6 and 7 quarts while with a mustang cobra with a 4.6L engine, 6.5L aftermarket oil pans are considered "extra-large"?

 

the 2.0l has an engine oil cooler were the 2.2 and 2.4 dont. that wont make up for all the difference though. the oil pan may be larger, im not sure on that though

 

the size of the oil pan determines how much oil the engine needs, so i guess a ss/sc oil pan is big lol

 

so you're saying if you put a smaller oil pan, you need less oil? if that were the case everyone would have 1 quart oil pans

 

the displacement of an engine is a formula involving the volume of each cylinder and multiplying the number of cylinders...the 2.0l takes so much oil because its a high reving motor and during those high rpms' the oil sump needs to be able to handle the demand for lubrication throughout the motor without the extra oil the system could run "dry" causing insane amounts of damage...just be happy GM thought this one out and didnt skimp when it came to this part of the design....the mustang cobra doesnt turn 7000 rpm requiring less oil to be in the system

 

But the Cobra's do run 6500 which is pretty close!

 

The Mach 1's are a 4.6l DOHC V8 that rev's out to 7k. It takes 6 quarts of oil. My Contour has a 2.5l DOHC V6 that revs out to 7k, it comes recommending 5.8 quarts but the Contour guys say you can go up to 6.5 quarts to help fight off oil starvation, so that's how much I run in that as well. My Dad's Durango with the 5.7l Hemi revs out to about 6k IIRC and takes 6 or 6.5 quarts of oil.

Obviously engine size doesn't dictate the amount of oil it uses .

 

well the engine needs the right sized oil pan...

 

i wonder if there is a temperature component to the amount? it would stand to reason that internal temperatures on the engine are much higher due to the supercharger than it would be if it were NA. these higher temps necessitate things like the underpiston oil squirters and the oil cooler. they'd require more oil in the system over the base engine that is not so equipped. and, if you have more oil, it runs through the engine less often, thereby theoretically running cooler...

 

just depends on what the engineers see fit, my 05 Hemi Ram takes 8qts of 5w20. viper takes 9.5-10.5 quarts of 0w40 mobil one. Just depends on the aplication.

 

at least the amount of oil we need is a nice round number. my sister's 1.8 sentra takes 2.7q. not even an even number in metric.

 

indeed sir you are correct!

 

You are correct sir the extra oil aids in heat absorption and release, it also aids in reducing thermal shock, the more oil you have to heat up the longer its going to take too heat up.

 

The Ecotec 2.0 liter is 'special'

.

 

My 2.2 always took 6+ qt to make it to the full line

 

My Ford Expedition 5.4 which revs redline to I think 5500 uses 7 qts.

 

There is more OIL suspended in the system. The 2.0 has pressurized "pissers" for each piston and main bearing surface and the oil cooler (as previously mentioned) does re-route a significant amount of oil to itself and through the hoses plumbed to it. Extra cooling is a bonus aswell.

 

Because

 

^^^truf