Haha, I'll use this as an example next time when explaining why communism/socialism can't work.

 

When I get my Tesla, I'm going to only use tier 1 electricity. LOL

 

If you use electricity made from wind turbines you will be able to choose which way the wind blows so you'll always have the wind at your back.

 

I've been using 87 since I bought my GS350 new in 2014 (I asked the service manager about the need for premium, and he said there wasn't any potential for harm using regular). It might perform even better with premium, but I have never had an issue accelerating quickly or going up hills. Certainly no smoke out the tailpipe, as one poster said. That might be worth checking into.

 

That is interesting, I would at least use mid grade if I was downgrading gas in a car that says premium only, I doubt there is much harm using mid grade in a GS, compression ratio is not very high nor is it really a stressed engine.

 

In general, unless you're driving a true high-compression motor (such as a high-end sports car), as someone else mentioned above, the engine computer will compensate for the lower octane and protect against knocks and pings. I had a 1999 Northstar V8 Cadillac that also required premium and never used it; no issues whatsoever.