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Old 01-21-14, 10:25 AM   #1
Lexus Test Driver
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Join Date: Aug 2011
Location: California
Posts: 975
Default Hypermiling the 2013 RX 350 = 40ish mpg

Hi guys!

i got a little bit bored this 3 day weekend,
so i have decided to do what my " Prius" friends are doing with their cars. Hypermile.

Basically, they put a lot of air on their Low Rolling Resistance Tires for better mpgs.
most do 45, while i know some who puts 60psi.

Hmm.. so let's test that on a 2013 RX 350 running on regular unleaded 87 octane ( Costco gas) with OEM tires ( Dunlop Grandtek) and 19 inch rims.
every gauge was reset to ZERO
trip A
average mpg
average speed

here's my baseline: i do 85% highway and 15 % city driving.

Click the image to open in full size.

and here's what happened after putting 38psi ( too scared to do 40)

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and nearing the end of my commute

Click the image to open in full size.

and at here's the final

Click the image to open in full size.

Disclaimer: i don't recommend this practice at all.
Overinflating the tires can give you a lot of mpgs but it can be unsafe
Although, aside from a bumpier ride, i didn't feel any difference in the drive.
2013 Lexus RX 350 Silver Metallic
2013 Toyota RAV4 EV Blizzard Pearl
2013 Tesla model S p85 Pearl White
2010 Land Rover Range Rover HSE Fuji White

Last edited by markrivers; 01-21-14 at 11:03 AM..
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