4131Re: [bmw e28] Higher Octane Issues
- Jan 29, 2006no.
>I recentley put 89 octane(US) in my 528e when I normally use 87 octane
>(US). I noticed that my idle dropped from around 900 rpm to around
>650. It kind of feels like it wants to shut off. It is a kind of
>Since I filled the car up with 89 I am just waiting to refill it with
>87 to see if it makes a difference. But does anyone have any ideas if
>higher octane gas can cause this.
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