I hear noises

['02 LSV6]

I posted earlier about some noises that I was hearing, and received some great advice. I put a bottle of fuel additive into the fuel tank and improved the knocking sound, but not completely. I continue to hear the noise sometimes, but not as often. I only hear the noise after I have run the car for a bit, and then turn a corner. I get the feeling that when I turn a corner, the car requires more torque to get back up to speed, and this is when I hear the noise. The noise is almost gone, so should I try another bottle of additive, or could there be a more serious problem with the fuel injectors? I thought about trading in the car for a Toyota, but like this car to much.

[CGGorman]

Toyotas have troubles, too...


Refresh my memory... What's the noise? When exactly does it happen?

Engine oil or fuel additives shouldn't have any effect on a noise that is heard only while turning...