Premium Gas

[Kioshi]

Originally Posted by fu_im_from_texas

...also the "xx or higher" is the industry standard for recommending fuel. so my lexus gs430 says "93 or higher" which really doesnt make much sence, because 93 is the highest pump gas avaliable in north america... toyota is saying "use 93"

the yaris says "87 or higher" which really doesnt make much sence because you cant get anything lower than 87 in north america

...the industry standard is to recommend the octane then add "or higher" at the end

They say some number and higher because say if you are driving in a foreign country....than something higher than whatever number they tell you can be used. But who would spend the money to be driving a U.S. car in Europe or Africa anyway ~

Like Tom said, just use mid grade. If its used car use cheap stuff. If its a new car in your first hands, use mid grade. If its hp is 173+ use premium~

[WRBlue]

Originally Posted by Kioshi

Like Tom said, just use mid grade. If its used car use cheap stuff. If its a new car in your first hands, use mid grade. If its hp is 173+ use premium~

That makes no sence...

If anything, an older car needs higher grade gas because of bad maintance, wrong plugs, carbon buildups in the combustion chamber, etc. But, if a car is maintaned, there is no reason what so ever to use anything but 87 octane. I have been to gas stations that don't sell less than 89, and I've been to some that sell 86...

There are a great many cars that make more than 170hp that only use regular. For example: My last truck was a V6 S10 that made 200-ish, and ran best on 86. The Jeep I traded in for the WRX made 235hp on 87.