Synthetic oil vs regular.....mistake
04-01-2008, 12:55 PM
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My Ride: 2005 525i (plain and simple)
Local shop changed oil (used regular vs synthetic). Put synthetic back in but wondered how bad it is to mix oils?? THanks
05 525i
05 525i
04-01-2008, 01:55 PM
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I think that your car will be fine as the synthetic takes over again (did they ever turn the engine on?), but the residual will unfortunately stick around for the life of the car.
That being said, what were they thinking?
I guess you live in a more rural area where they do not see to many 5-series.
That being said, what were they thinking?
I guess you live in a more rural area where they do not see to many 5-series.
04-01-2008, 02:23 PM
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Originally Posted by BarryNH' post='554354' date='Apr 1 2008, 04:55 PM
Local shop changed oil (used regular vs synthetic). Put synthetic back in but wondered how bad it is to mix oils?? THanks
05 525i
05 525i
- if you did a full drain and put in synth then you are fine.
04-01-2008, 02:58 PM
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My Ride: 2005 525i (plain and simple)
Originally Posted by monacobmw' post='554395' date='Apr 1 2008, 05:55 PM
I think that your car will be fine as the synthetic takes over again (did they ever turn the engine on?), but the residual will unfortunately stick around for the life of the car.
That being said, what were they thinking?
I guess you live in a more rural area where they do not see to many 5-series.
That being said, what were they thinking?
I guess you live in a more rural area where they do not see to many 5-series.
My wife went for an inspection sticker and they suggested the oil change....gotta watch the "up sell" at the garages. Your right, not too many 5-series. Thanks for the feedback.
04-01-2008, 03:54 PM
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Originally Posted by BarryNH' post='554354' date='Apr 1 2008, 03:55 PM
Local shop changed oil (used regular vs synthetic). Put synthetic back in but wondered how bad it is to mix oils?? THanks
05 525i
05 525i
You could always get it flushed out as well.
04-01-2008, 04:08 PM
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Originally Posted by BarryNH' post='554354' date='Apr 1 2008, 01:55 PM
Local shop changed oil (used regular vs synthetic). Put synthetic back in but wondered how bad it is to mix oils?? THanks
05 525i
05 525i
It's perfectly ok.
04-01-2008, 06:20 PM
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Originally Posted by BarryNH' post='554440' date='Apr 1 2008, 06:58 PM
Your right, not too many 5-series.
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