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Hi There- new guy checking in

1364 Views 12 Replies 10 Participants Last post by  ard

Been browsing for a while, finally decided to buy an M5. Here's my short story: Have had a ton of BMWs over the years starting with a 320is way back in 1985, then various 5ers including a Dinan 535, M3 convert (well, bought it for the wife, actually), last was a 750iL. Then traded in a 540I sport
2003 which was done to get the auto trans for commuting. Did the Dinan S pkg to the 540, which really pepped it up, but left me wanting. Then I started driving my Acura NSX into work alot seeing if a manual would drive me nuts....ouich in traffic. I decided I was not going to let commuting dictate my driving enjoyment, traffic jams be damed! Started looking for an M5.

Anyways, I love to mod, been doing DIY for years, but with family and travel just dont have time right now, so just took the plunge and bought an 03 Imola Red with the full boat Dinan S2 package. I went to the BMW dealer and they gave me copies of all the records from day one, and also told me my car was actually the last E39 M5 they sold. The Dinan guy at the dealership knew all the history of the car as well, which was a nice bonus.

The thing is a total beast indeed, I see why you guys call them that . I have owned Ferrari, Porsche, tons of german rides, this car is truly unique. I drove lots of normal M5s as well, the S2 IMO adds alot more than just HP- changes the way the car revs, sounds, handles, goes, etc. Feels like a different car, very exotic. I am also amazed at, given the HP, how docile and easy the shifter is in traffic.

Anyways, a couple of questions:

1) What exactly does the sport button do to cut the power? It does not seem to have much of an effect on milage. I assume it is a software thing.

2) Oil- I am confused. Lots of folks on the board say 10-60 however the sticker under the hood says 5-30. Its under warranty for next couple of years, so dont want to screw with BMWs recommendations. WHy are so many using the 60wt?

3) With the Dinan diff, 1st gear is somewhat useless unless staring uphill; I often start in second if not at a full stop. Then 6th runs higher revs than I'd like at highway speeds. Is there any way to change out 6th to make it more of an overdrive?

Looking forward to joing the discussions!

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