Oil Change on a BMW 840Ci

Asked by Sep 13, 2012 at 10:48 AM about the 1997 BMW 8 Series 840Ci RWD

Question type: Maintenance & Repair

I just bought a '97 BMW 840Ci with 35K mi on it and want to change the oil. What oil is recommended and how often should it be changed?

2 Answers

The recommend oil is a quality full synthetic 5w40 motor oil. If you intend to keep this car you should change your oil every 6 months or 6k miles. Water builds up in your oil from daily condensation and will foul your crankcase ventilation system if it is not changed regularly. If you check around you will see that BMW has had a significant problem with there crancase ventilation systems failing in cold climates. This began happening after the crazy long oil change intervals came out. The failures in the crancase systems are fromn water freezing in the systems and breaking them. Keep in mind that automobile manufactures sell cars therefore have no interest in yuo driving your car for the 400-500 miles it can run. To speed up its detrioration they simply increase the oil change interval to plan failure in the mid 100k range.

1,735

10/40 or synthetic oil is recommended; every 3000 miles :)

Your Answer

8 Series

Looking for a Used 8 Series in your area?

CarGurus has 36 nationwide 8 Series listings and the tools to find you a great deal.

ZIP:

BMW 8 Series Experts

  • #1
    RickELake
    Reputation
    70
  • #2
    Robert Charlson
    Reputation
    50
  • #3
    Tom Demyan
    Reputation
    20
View All

Related Models For Sale

Used BMW 7 Series
98 Great Deals out of 5,265 listings starting at $2,999
Used BMW M3
29 Great Deals out of 2,088 listings starting at $6,599
Used BMW 3 Series
1,027 Great Deals out of 33,544 listings starting at $1,000
Used BMW 5 Series
473 Great Deals out of 15,627 listings starting at $1,500
Used BMW M5
10 Great Deals out of 579 listings starting at $11,996
Used Porsche 911
152 Great Deals out of 5,008 listings starting at $11,990
Used Chevrolet Corvette
183 Great Deals out of 18,548 listings starting at $3,941
Used Chevrolet Camaro
435 Great Deals out of 31,243 listings starting at $3,550
Used Mercedes-Benz SL-Class
69 Great Deals out of 3,432 listings starting at $3,875
Used Ford Mustang
549 Great Deals out of 36,468 listings starting at $1,500
Used Acura NSX
251 listings starting at $156,940

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.