01-11-2019, 07:35 AM | #1 |
Private
7
Rep 61
Posts |
reamaing service mileage for engine oil not accurate
Just wondering if anyone has experienced when the remaining service mileage is not accurate.
My car was serviced by the main dealer for the engine oil service in November 2018. When I picked up the car back then it was showing 19,000 miles or 11/2020. Over the last couple I weeks I have seen the aremaining service dropping and today it's now showing 15,000 miles remaining for the engine oil. since the car has been serviced it was only covered 700 miles and I don't understand how it's dropped by 4,000 miles |
01-11-2019, 08:08 AM | #2 |
Second Lieutenant
115
Rep 237
Posts
Drives: F16 X6 M50i
Join Date: Jan 2019
Location: Watford
|
Maybe it's based on usage - i.e. lot of short hop journeys vs. long motorway drives?
|
Appreciate
0
|
01-11-2019, 09:08 AM | #3 |
Lieutenant General
6659
Rep 15,858
Posts |
I wouldn't panic at this stage, monitor it, as it is CBS. Could hold the mileage or reduce much more slowly, as more miles are added.
Is it the first oil service, or a higher mileage engine? Can be influenced by how much contamination is in the engine, how quickly that changes the new oil condition. If it simply keeps falling, then there will be some issue with the sensing. |
Appreciate
0
|
01-11-2019, 09:15 AM | #4 |
Major General
1394
Rep 8,081
Posts |
Unless it's changed the CBS is just based on fuel used. Lots of start / stop journies use more fuel (and cause more wear) for a given mileage than long economical motorway runs. i.e. if the oil says 15000 miles remaining and you do 1000 miles of motorway driving it will say 14000 or perhaps more. If you do 1000 miles of city driving it might drop to 12000 even though you've only driven 1000. I'm not aware of anything more sophisticated that actually measures contaminates or viscosity.
__________________
Ian
Current: 2021 G21 330i M-Sport Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2 |
Appreciate
0
|
01-11-2019, 09:22 AM | #5 | ||
Lieutenant General
6659
Rep 15,858
Posts |
Quote:
Quote:
|
||
Appreciate
0
|
01-11-2019, 09:23 AM | #6 | |
Second Lieutenant
115
Rep 237
Posts
Drives: F16 X6 M50i
Join Date: Jan 2019
Location: Watford
|
Quote:
|
|
Appreciate
0
|
01-11-2019, 09:31 AM | #7 |
Major
606
Rep 1,455
Posts |
When mine was last serviced it said I think 17000 or 18000 until next service
About 8500 miles later it is still saying 15000 but my journeys are generally long and I do very few short journeys So all it is doing is adapting to your style of driving It can only ever be a best guess as your usage of the car might change anyway Nothing to worry about |
Appreciate
0
|
01-12-2019, 05:09 AM | #9 |
Major
547
Rep 1,066
Posts |
Takes account of a number of factors - I notice it drops quicker in winter than summer too - related to your fuel input, if your economy is down because its cold it directly reflects in the miles to service.
Ive done 9,000 miles since collection - had 2,500 miles left on car when I bought it AUC, had it serviced, has dropped 3,000. So 9,000 on the year for 5,500 CBS reduction. I do very few short trips, every trip I try to get the car up to temp and it helps. |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|