LRP is just another scam to get rid of older vehicles..
It lacks any type of upper cylinder lubricant that works, and
the end result is that valves and seats just die.
Even a standard old Nissan Bluebird had pieces of the piston
crown blown out from pinging, the pits in the piston were
quite surprising when we saw them with the cyl head removed..
Looks like the only alternatives are unleaded conversions, (suggest using premium unleaded if you have a modified engine), or going to LPG. But make sure you use an upper cylinder lubricant with that too!!!
My old XE 351 wagon didn't run on super once they started to muck around with it, but maybe the compression was a tad too high, with the block decked, and running 302 closed chamber heads that had been shaved.... Went great at first though..
Then I discovered the ED XR6.... And then an ED XR8.....
And now I have a house and a $1500 XD.......and no more XR....
Original XD 351 Ute - I got one!!
HSV - I just don't want one....EVER!
My XF 3 on the tree ute is ALWAYS stuck in third......