MAX KMS OUT OF TANK and advice!

[Dr.304]

hey
i have a 1990 VN Calais, and i dont know what the norm is for kms out of a full tank, but i am only getting like 315? What is everyone else getting. If you wouldnt mind, if your car has any mods to help save economy and any tips on how to do it.
I just have a stock 3800, with K&N Panel filter in the standard air box with the front of the air box cut out....
i dunno i thought i would at least get 350 or 370??

thanks

 

[Boonz]

geez thats bad ude.... my vp gets around 600 k's to a tank on the highway and about 450-500 round town

 

[Calais_5sp]

same here, if i drive it around hard everywhere i still get bout 450, but the most i have ever got is around 600. so yeh thats pretty bad

 

[Boonz]

might wanna change your oxygen sensor as a starting point, usually helps economy a little bit

 

[Dr.304]

kk cool, im heaps confused cause i dont exaclty have alot of money atm for fuel!

 

[YMY-88U]

im getting around the 550-600km mark on 95 premium but when i use 98 premo id be lucky to get 400kms.... something wrong there

 

[MyVPIsFasterThanYourVP]

dont the utes have bigger tanks than us sedans tho

 

[ephect]

champ, you've double posted the same thing as this.. http://forums.justcommodores.com.au/showthread.php?t=54940

maybe continue the above link as it has more replies?

Cheers mate