[///S320]

I have recently bought a 1995 s320v. I notice the manual calls for 91 octane fuel, claiming any less will damage the catalitic converter. It is not a major problem as I didn't buy this car to save money. I am curious however if 91 octane is realy necessary.[]

Cheap gas will do you no good. 91 rating is there to avoid engine knock.

Why feed her something she dosent want to eat?

///S320

 

[///S320]

I am more than willing to give a girl anything she wants so that I get the performance I want. Still, will she perform just as well for a hamburger as for a steak dinner ?

You are funny! []
Actually it does not have a sensor to detect cheap gas. However, people have told me that the check engine light sometimes appear if lower octane rating is used (iam not fully convinced of that though).

I always use 93 grade, as in chicago thats the best you can get. If you want, you can try the medium grade gas and see the performance. 93 burns fast, hence you get more performance without engine knock.
The engineers in Germany did not recommend the use of 92 or 91 just for the kicks, its there as the engine needs it.

those were my 2 cents!

(nice car by the way!)

///S320