Pro boat builder
Sure, its mostly an industry magazine , but for folks with boats it is probably the best source of accurate information .
If you have to (gasp) Pay to subscribe it IS worth it.
An example is the current issue that goes into depth about bugs and water in the fuel. Esp since some bio gunk may be in the fuel.
Nigel Calder does a great job of explaining some possible cures .
Also covered is a discussion of LI batteries , their actual use on board , and some of the dangers in their use.
No financial connection to PBB, just a very happy reader sharing info.