2006 Buick Terraza Q&A

2006 Buick Terraza Question: Tarazza transmission fluid change

You recommend chnging transmision fluid every 30,000 miles. Owner's manual recommends every 100,000 unless used under harsh conditions. -
Answer 1
I would follow the manufactures schedule. This is what the vehicle engineers have set as the interval. Harsh conditions would be towing, lots of hills, conditions like this. -