You mean the stickers - saying "this side up" I guess- Yes, engine laid down according to instructions.
The Oil level is always kept close to max, never above, but also not significantly lower I admitt
I thought the problem might be the relatively steep grades I sometimes have to take, so I thought about some otions
1. weld a bracket and hook it up to the hitch receiver, downside would be the dirt and debris, would require tight sealing in plasic wrap (-my boat is an inflateble, so no need for a trailer)
2. block off the crankcase ventilation (if there is only one...
3. lay the engine cross, rather than lengthwise on the bed
4. make a wooden bracket to have the cowling not flat on bed, maybe 6 ish inches higher than prop.
5. drain the oil - don't like this ooption