Originally Posted By: bbhero
It amazes me to a degree how people try to justify running cheaper gas in their cars. If it says "recommended" than I can in reality run regular because it doesn't state "required". If higher octane is recommended it is for a good reason. In reality one could CERTAINLY run 87 in any car period.
My car is specd for premium gas. For a reason. I ran across a lady with a 3.5 brand spanking new Maxima with temporary tags on it. She said the car was running terribly. Why??? Running regular cheap 87 in it. I informed her that her car needed 93. Hopefully by doing this it fixed her problem. If not than her fuel injectors and or spark plugs being replaced would likely be on her dime. Changing her plugs alone north of $500.
Here there is a 50 cents difference between regular and premium. In a 20 gallon tank that's obviously $10 a tank. Let's say one uses 6 tanks a month. For a year that is $720 extra per year for gas. Notable. Yes. But if someone is going to buy a $40,000 vehicle than I would tend to believe an extra $60 a month shouldn't break the bank. If yes than obviously go ahead and purchase another lower cost vehicle that is meant to run on 87 only.
And there is absolutely nothing wrong with doing this as well.
The CAFE standards are really not quite has helpful in a number of ways. Good intent DOES not always consider all eventual real world effects.
I have been running 87 in my Lexus & Toyota vehicles that spec 91 for 11 years and approximately 650,000 miles. No issues yet. Fuel system gets a gumout bottle every 20,000 and spark plugs get changed at 120-140,000 miles. No problems.
$60 per month x 2 vehicles = $120/month x 11 years =$15,840