Happy New Year.
I own a 2005 VW Passat TDI w/ almost 100k miles.
I have replaced the balance shaft module, aftermarket axles and everything seems to be running well w/ one exception: about a 1/3 decline in fuel mileage.
During BSM replacement therapy, I had water pump and timing belt replaced ... this was over a year ago. Recently installed new gas tank. Decrease in gas mileage has happened recently. I will be changing air filter, but am wondering if it is anything else.
Thanks.
I own a 2005 VW Passat TDI w/ almost 100k miles.
I have replaced the balance shaft module, aftermarket axles and everything seems to be running well w/ one exception: about a 1/3 decline in fuel mileage.
During BSM replacement therapy, I had water pump and timing belt replaced ... this was over a year ago. Recently installed new gas tank. Decrease in gas mileage has happened recently. I will be changing air filter, but am wondering if it is anything else.
Thanks.