How are you playing your precious MONO Vinyl?

“It’s not about the money, it’s about feeling like a sucker. ”

@elliottbnewcombjr 

It’s all about the perspective under given conditions. You can buy a 10 year old used BMW and fill it up with cheapest gas and not feel like a sucker. 

Would you fill a brand new BMW as a first owner with cheapest gas….may be you will, maybe you won’t. That would be your prerogative. You and I both know, what is a recommended fuel rating for a BMW.

My comment about 87 Octane stems from ownership of Alpina B7 and M3 (purchased new)….would they run on 87 Octane, without a doubt. But a 91 or higher Octane ensures optimal performance and longevity of the engine. 

lalitk OP

"and longevity of the engine. "

I have not read or been told anything about that. Any links?

@elliottbnewcombjr 

A quick search lead me to this Car & Driver article. I am sure you can find more articles around the benefits of using a higher octane. I was bit surprised to see the results for Ford F-150. 
https://www.caranddriver.com/features/a28565486/honda-cr-v-vs-bmw-m5-ford-f-150-dodge-charger/

https://engineering.mit.edu/engage/ask-an-engineer/whats-the-difference-between-premium-grade-and-regular-gasoline/

High mileage cars tend to lose a little compression and therefore lose the requirement for high octane fuel. I don’t know whether this applies to Elliot’s report or not. 

@billstevenson 

Thank you for sharing your perspective on two carts and the genre. Like you, I listened to Jazz primarily as well.