Originally Posted by jfelbab

My RX 330 manual states:



I've done numerous expressway tests of both fuel types and conclude that I can average 2 MPG higher using premium than regular in my RX330. While I might be able to use regular, it is actually cheaper to use premium in my RX330, as I can go further on each dollar spent. Added benefits of running premium include a cleaner engine and improved performance.

Unless you actually do the math with your own vehicle, you might be fooling yourself if you just assume you are saving money by using regular.

Originally Posted by rocsrx350

we get your kind in our dealership all the time......They want to drive class but thay have 2 cents to there name, and go to jiffy lube for there 2.00 oil changes, and wonder why the 16yr old left the drain plug loose. If we get a ping problem in our dealership we take a sample and get it tested, if it comes back as crap gas, we tell them to get lost! If you wanna roll with the big dogs, get the mpg outta ur head, trade it in for a kia

Originally Posted by lexus114

Well we can have this debate until the cows come home. This topic has been beat in the head for quite some time now,the best thing to do is use what ever fuel you think it runs best on. If 87 works for you,use it. If 89 does,use it. etc.I think its time we put this topic to bed. We certainly will not all agree on this subject,thats for sure.

Originally Posted by rxnewb

All the gas at the pump is the same gas. The only difference is the octane points and whatever other cleaning additives that the brand puts in. All brands buy their gas from the same place.

Originally Posted by windex

I only get 8 miles a gallon ... in the canyons