Unless I encounter a problem, I rarely look at the Manufactures "Suggested" Maintenance intervals; however, now days you should, because nothing lasts a "Lifetime" and that is what led to the issues with the O1M Transmission.
IMHO, take the suggested maintenance guidelines and reduce them by 15% and then increase them 15%; do it in years and miles. This will give you, your "Maintenance Window". If your driving style is gentle, then your maintenance will have a longer duration between cycles. If you drive like you are in NASCAR; the you will have a short duration between cycles.
"Lifetime" in "car speak" is typically 5 to 7 Years or 50,000 to 75,000 miles.
IMHO, take the suggested maintenance guidelines and reduce them by 15% and then increase them 15%; do it in years and miles. This will give you, your "Maintenance Window". If your driving style is gentle, then your maintenance will have a longer duration between cycles. If you drive like you are in NASCAR; the you will have a short duration between cycles.
"Lifetime" in "car speak" is typically 5 to 7 Years or 50,000 to 75,000 miles.
