Originally Posted by
wolfgang20878
First of all, changing the oil once a year if you’re tracking your car is way too little. Should be every track weekend or two or three. If you are running hot, there’s a problem (thermostat?), or maybe you just need to change the oil for each event so you know you have the right level. During a race weekend, I will add up to a quart of oil to my race car. You can get a reading from an oil analysis company like Blackstone that tells you if you’ve over-heated the oil, how much performance is left, etc. Second, you may want a better oil, like Joe Gibbs or Redline. You can’t run a full race oil because it will kill your catalytic converter, but there are alternatives for running performance street cars. Maybe also a better oil filter, one that has no bypass valve. Third, get dedicated oil temp and pressure gauges, the stock ones aren’t accurate enough. You might call someplace like BimmerWorld, which races BMWs, for their advice. Don’t bother with the BMW dealer unless they race and you can talk with the guy that maintains the race cars.
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