No harm in trying, it worked a treat for the hydraulic tappets in my previous LWB 2.4 Frontera, close to the next oil change the tappet started acting up again but post flush and oil change all was well once more.One question will the Engine Flush stop the tapping sound that comes from the valves or does one have to change the tappers as well as my mechanic is saying.Your reply will be quite apprecaited cos I intend to visit the workshop this weekend.
On my Diesel Frontera I ran that on 75% waste engine oil and 25% kerrosine [or petrol, whatever I had in the jerry can] The kerrosine flushed out the fuel system a treat and blocked the fuel filter as a result - I always carried a spare!
On the Rangie I mixed good clean diesel and Kerosine 50/50 on my last long trip - yup about 75miles down the highway I'm coasing to a halt having blocked the fuel filter - I had a spare - same filter as the Frontera had by coincidence! so kerrosine seems to work good at flushing stuff out - I added a couple of quarts to the Jeep last weekend and let it idle for 15/20 mins before doing its oil change. How effective it was I cant say and DEFINATELY would not drive it or put any load on the engine with kerrosine in the oil.
I might try the ATF idea on the Rangies oil change if it has a high detergent content.