[BEAR-AvHistory]

Just remined myself of one other reason to keep the revs up from the start. Had the COBRA out this morning.

Its a 5MT. starting out speed local limit is 45 & I do 54 or so. Run the car in 4th at that speed with up-shifts at 3000. Rev limit is 8200.

Ambient temperature is 88*F & after 2 miles water was 170 & oil was 100. After 4 miles water was 180 (my thermostat setting) & oil was 130. Oil did not come up to 180 (its setting) for 8 miles or so.

Now to the point. Anyone with a lot of relatively short drives is not getting the oil hot enough for vaporize & release contaminants running at idle or near idle engine speeds resulting in unnecessary engine wear.

This is compounded by 10/15K or once a year factory oil changes that BMW offers. Interesting thing on the BMW oil changes. My 2004 330 ZHP was 7500 miles. Don't remember what the 335is was but IIRC it was 10K miles. The 435 went to 15K miles & the 440 is back down to 10K miles.

Sounds like they are trying to dial in the least service possible without effecting warranty claims.

Am not an oil slave & 8-10K miles or once a year is good for me. Did an intermediate change myself on the 435 between 7 & 8K miles.

Use this pattern for everything I own or maintain for the family.