Quote:
Originally Posted by Scharbag
That is not entirely true. A more effective oil cooler will reduce peak oil temperature as it is able to remove more thermal energy in the same time period as a smaller cooler. Typically, larger coolers are more effective but proper design can effect the cooler's efficiency.
Think of it this way: if you put an infinitely large oil cooler on your vehicle, you would never be able to heat up the oil at the return line.
And I agree, running the same oil cooler on a NA vs FI engine, the FI engine will always run hotter due to the increased waste heat produced in the engine (more fuel, more heat). That said, if you run a good synthetic engine oil, 260F is still not going to cause much worry. I used to run 290F in a big turbo VW 1.8T all day long and never had any issues before selling the car. Some race forums consider 300F oil temperatures nothing to worry about if using a good synthetic oil.
Cheers,
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with all due respect to your VW experience and the theoretical stuff about oil coolers in general, I'm talking about real-life BMW E9X Oil cooler experience I've installed CSF oil coolers and I've finally used M24 oil cooler and BOTH had no significant effect on idle or daily driving temps , they do a "better" job than OEM cooler in reducing the recovery time as I said but not really reducing oil temps .. I'm not talking about VWs or NA M3s here , I'm the owner of a 720+whp E90 M3 and I literally live in the desert ! lol so I kinda know a thing or two about high oil temps
cheers