Evolution Racewerks (ER) BMW N55 Oil Cooler Upgrade (M2, M135i, M235i, 335i & 435i)
It's well known that the N55 engines runs very hot. Turbos that build a lot of heat and a small radiator play into why this engine runs so hot. A quick look at your gauge cluster on your dash after a few minutes of "spirited" driving, you'll notice oil temperatures over 250 degrees. Considering that most cars don't even exceed 230 degrees tells you quite a bit. As oil temperatures get too high, thermal degradation occurs. This is when the oil starts to lose viscosity due to heat and start to break down and becomes more susceptible to "shearing" or oil breakdown. An internal combustion engine like the N55 engine, imparts high shear forces on the motor oil, which is sandwiched between two rotating or sliding forces under load and heat. "Shearing" is when the molecular structure is essentially torn apart by these mechanical shear forces. Lower your operating oil temperature will greatly reduce this. Thus your motor oil is in better shape to protect the bearings in your car's engine, thus improving longevity.
For more details on this, please visit:
https://www.mlperformance.co.uk/product ... 7655079002
At ML Performance, we pride ourselves in offering BMW Performance parts at competitive prices. More importantly, as we are car enthusiast ourselves, we value your shopping experience highly so you can expect great customer service.
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