Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - A fuel economy riddle...with a moral to the story

VegasDude · 05-14-2010, 01:51 AM

This got me thinking about the claim made by Mobil that their Mobil-1 0W-30 could potentially increase mileage by 2% over conventional 5W-30. I was standing in the store thinking, "Hmmmm. 2% isn't very much. But I'm already getting 35 MPG by ecodriving my car. So 2% on top of that is much better than 2% on top of the EPA estimated 21 that my car is rated at." On the surface it sounds like the more fuel efficient your car is, the more this oil could potentially save you. The reality is actually not as bright.

The better your FE, the less money you will save.

05-14-2010, 01:51 AM	#7 (permalink)
VegasDude See ya at the next light! Join Date: Apr 2010 Location: Las Vegas, NV Posts: 67 Slowest. Altima. Ever. - '05 Nissan Altima SE 90 day: 45.91 mpg (US) Thanks: 2 Thanked 5 Times in 5 Posts	This got me thinking about the claim made by Mobil that their Mobil-1 0W-30 could potentially increase mileage by 2% over conventional 5W-30. I was standing in the store thinking, "Hmmmm. 2% isn't very much. But I'm already getting 35 MPG by ecodriving my car. So 2% on top of that is much better than 2% on top of the EPA estimated 21 that my car is rated at." On the surface it sounds like the more fuel efficient your car is, the more this oil could potentially save you. The reality is actually not as bright. The better your FE, the less money you will save. Last edited by VegasDude; 05-14-2010 at 05:31 PM.. Reason: got my math wrong