- Dec 4, 2013
- Reaction score
- Members Ride
- Pontiac G8 GT
Realy, says that? That is interesting. Yes I do believe the crankcase oil can reach higher temps since it travles around the engine, not the same passages as the coolant but other areas with no way to go out (exchange heat). The Crankcase Oil Pan is not a good Heat Dissipator, might help transfering some heat but does not have a good way to do a good heat transfer. The only way I see the oil to cool properly is with an Oil Cooler or have a Crankcase Dry Sump and use the remote reservoir as a cooler. The reason for a bigger oil pan is too give the oil time to cool a bit and to keep the engine with a constant flow (oil moves around during corenering, de/acceleration, inclines, etc...). Coolant temps depending on the engine (most US Cars) does not go above the boling point (100C/212F), they run about 88C/190F for normal operating temp, and about 99C/210F for the fans to kick in. If you reach 100C/212F easy, is your warning of some bad is about to happen or your system is deficient.The thing is that certain engine parts do reach temps as high as that. In fact even bulk sump oil can reach temperatures as high as 130 or so since that's mentioned in the Nissan GT-R owners manual (they say dump the oil asap if it ever reaches 130 LOL)
Keep in mind, the temp reading comes from the coollant's hottest spot (cooling system wise, around the engine coolant out hose). The crankcase (the PCV system is not a good heat extractor), perhaps is much hotter, only way to tell how hot is to install an Engine Oil Temp Sensor.