Originally Posted by WyrTwister
I have read some engines have a lot more chain / guide problems , than others . In those cases , I also read , such repairs , can be pretty expensive ? I also read HIGH quality synthetic oil is preferred ? ( In any case , which will not hurt anything . )
A timing belt may be preferred ? Do not know . Our Sonic 1.8l is the first car we have owned that had a timing belt . It has not reached the recommended mileage to replace . And , as far as I know , we have not owned a car that has timing chain guides ? Although RA shows a timing dampener . Maybe that is similar ?
https://www.rockauto.com/en/catalog/buick,2006,lacrosse,3.8l+v6,1432026,engine,timing+damper,5740
Most prefer chains due to the maintenance-free aspect (mostly). Chains do slack over time, and belts are not only quieter but also usually not terribly expensive to replace at intervals of 80-100k plus.