Oil Change on a BMW 840Ci

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

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.

1,605

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

Your Answer

Add photo

Related Questions

  • Oil Change on a BMW 840Ci 2 answers

    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?

    1997 BMW 8 Series 840ci

    -

    Maintenance & Repair

  • Oil for a 1997 840? 3 answers

    What kind of oil is best for a '97 840? Conventional or synthetic or does it matter?

    1997 BMW 8 Series 840ci

    -

    Maintenance & Repair

  • How can I repair tach and gear display in my BMW 850 ci? 1 answer

    My 1993 BMW 850 ci has a tach that spins to red line intermittent even standing still. ALSO, when I'm in Park, it lights down on stick as R and so on. How can it be repaired?

    BMW 8 Series

    -

    Maintenance & Repair

  • where can I find a moon roof for this car 4 answers

    the car was towed and the moon roof was loose and flew off and was never found. I need to find a replacement so I can sell the car. Where might I look?

    1991 BMW 8 Series 850i

    -

    Maintenance & Repair

  • BMW 840ci 1 answer

    Is this series of BMW 840ci being produced as of this year?

    1997 BMW 8 Series 840ci

    -

    General

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:

Search BMW 8 Series Questions

BMW 8 Series Experts

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

Related Models For Sale

Used BMW 7 Series
163 Great Deals out of 6,123 listings starting at $2,740
Used BMW M3
42 Great Deals out of 1,334 listings starting at $5,995
Used BMW 3 Series
1,001 Great Deals out of 31,466 listings starting at $1,000
Used BMW 5 Series
491 Great Deals out of 16,477 listings starting at $2,000
Used BMW M5
27 Great Deals out of 632 listings starting at $12,995
Used Porsche 911
105 Great Deals out of 4,488 listings starting at $10,999
Used Chevrolet Corvette
230 Great Deals out of 22,186 listings starting at $3,750
Used Mercedes-Benz SL-Class
42 Great Deals out of 2,722 listings starting at $2,995
Used Mercedes-Benz S-Class
161 Great Deals out of 6,286 listings starting at $2,000
Used Ford Mustang
689 Great Deals out of 44,310 listings starting at $1,500
Used Chevrolet Camaro
375 Great Deals out of 31,272 listings starting at $2,500

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.