I have a 2000 Civic HB. It has 76000 kms (I purchased it with 48000 kms). I
have noticed ever since owning the car that if there is 1/3 tank of gas
remaining or less that it seems to have trouble starting. (i.e. it's not
instant as when there's a full tank.) The starter will turn over for about 3
seconds, and then it starts.