In the last week I've noticed a sudden decrease in our near new good vehicles fuel efficiency.
Today I discovered why.
Bloody mud wasps have been crawling through the mesh on the air snorkel ram,,, and built a large nest right down low in the neck.
Effectively blocking 50% of the air flow.
After dismantling the head and the main tube I got it out, then sprayed a coating of long term barrier spray in it.
That should stop their antics for a while.