OIL pressure weirdness??
1987 190E 2.3 78,000 miles. After driving on the highway for about 2 hours today noticed something weird when slowed down and was in normal traffic coming home after getting off highway. Oil pressure gauge at stops was dipping below the 2 mark. As soon as I pushed the accelerator it went back up to the top but at stops it would go back down. usually it stays up close to the top or at the top even when stopped. Is this normal or was it abnormal before and normal now? ugh, thanks