Average MPG for GS400
#1
Pole Position
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Join Date: Apr 2004
Location: Lenexa, Kansas
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Average MPG for GS400
Hey guys,
I recently switched over to Amsoil in my GS400. I switched because we started using it in our industrial gear boxes. Right off the the bat I noticed that my mileage jumped to around 22-23mpg. The only mods I have are a K&N drop in and a Carson exhaust. On a recent road trip I got around 24mpg cruising at 75mph. I am going to run a bottle of Amsoil PI through and see if that will help any more. I have always though it got really good mileage considering the sticker says 19mpg on the highway. My daily driving consists of 50/50 highway/city.
What are you guys getting mileage wise?
I recently switched over to Amsoil in my GS400. I switched because we started using it in our industrial gear boxes. Right off the the bat I noticed that my mileage jumped to around 22-23mpg. The only mods I have are a K&N drop in and a Carson exhaust. On a recent road trip I got around 24mpg cruising at 75mph. I am going to run a bottle of Amsoil PI through and see if that will help any more. I have always though it got really good mileage considering the sticker says 19mpg on the highway. My daily driving consists of 50/50 highway/city.
What are you guys getting mileage wise?
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#12
no power mods on the gs400 here and i use amsoil as well. amsoil is in everything on the car and we get about 23-24mpg. but the wife has a lead foot so when she drives the car all week we get like 17mpg.
#13
Lexus Test Driver
Join Date: Mar 2001
Location: 808state
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I'm envious of the mileage you all are getting. I am at HALF the mileage of most of you. I don't have a heavy foot, yes the car is tuned, and yet my mileage sucks eggs. Oh well, at least if I run out of gas and I'm on the side of the road, when someone helps me out, they can look at the pretty engine that's fuel starved!!