My 2000 Beetle 1.8t's engine with 70,000 miles on it is making fairly loud puttering sounds like a diesal engine and it is also making a sound like gangling chains (like metal against metal) when it's running. Apart from that, it seems to be running good with good acceleratin. I am about due for an oil change but the oil level is fine. What could that be? Right now I'm wondering if It could be engine knock. I always use premium (91 octane) but I wonder if I'm getting ripped off by the station that could have put regular (85 octane) in their premium pumps. What does knocking sound like?
- posted
17 years ago