Help create a servicing checklist?

me and @S1mon drove up from sunny essex. hoping to make this years one too

 

One of my customers had his van serviced by the local garage for years until they told him he needed a new engine. In all that time they hadn't checked the valve gaps or had been setting them wrong, there was nothing else wrong with it and it's still fine years later AFAIK. That was what I was thinking of when I posted. Also at techenders every year there will be a few vans plumbed in all wrong. Even if just the once it's good to get someone familiar to look it over, though there are plenty of bus owning people on this forum who could do that and are as much specialists as anyone else and will have done every job at least once.