Help me get over 40mpg.

[Burbio]

go slower.

[Ein]

Originally Posted by danhenrie

Not true I just switched to Mobile 0-20 fuel saver went from 32 to 36 city milage havn't seen the effects on the freeway just yet don't travel on it to much

I don't know how many miles you have? Are you sure your car is not getting better mileage from the engine breaking in or warmer weather (summer fuel blend)?

You are getting over 10% improvement. I think Mobil is claiming much less than that. Their wording is potential saving of 2%. It didn't say which grade it was compared to.



Mobil didn't have 5W-20 synthetic until few years ago. The only grade they had close to 5W-20 was 0W-20. I used that in my Civic for years until they discontinued the 0W-20 and replaced it with 5W-20. It's only recently they brought back 0W-20. My mileage didn't go down or up when I switched to 5W-20 from 0W-20.

[Ein]

Originally Posted by mahout

I agree with you. pumping losses are not the same as viscosity. Viscosity is based on the time it takes for a known volume to drain thru a specified orifice or the equivalent.
Pumping losses are dependent on the power required to move a specified quantity per unit time thru a specified length of 'pipe'
Synthetic oils requitre less hp to pump the same quanity per unit time thru the same 'pipe' compared to paraffin or naphthetic oils. Less hp loss, more mpg.And of course more hp at the drive wheels.

It sounded good on paper. Do you have any really world proof?

[nerual13]

so THAT is why I got a little over 12 gallons into the tank last night!!! I was a bit perplexed on that one, but I'm looking forward to seeing how far I can get on that extra fuel I'd LOVE to break 40mpg, but since I haven't driven a M/T in a while, I still suck at shifting it, so that is hampering me a bit. I'll get there though!