You are overdoing it.
Our 1999 ML320 was run on dino oils for few years before MBUSA changed the policy.
I was servicing it at the dealer during warranty period and since it was our vacation car, the 13,000 miles FSS would give us would take 18-20 months.
Once again - on dino oils. The car lasted in our family 13 years. During that time we had to replace about $300 worth of broken parts.
Our 1999 ML320 was run on dino oils for few years before MBUSA changed the policy.
I was servicing it at the dealer during warranty period and since it was our vacation car, the 13,000 miles FSS would give us would take 18-20 months.
Once again - on dino oils. The car lasted in our family 13 years. During that time we had to replace about $300 worth of broken parts.