ok i'll be clear this time...buy your oil and come to our workshop and get it put on the hoist and oil changed for around 30 bucks
OR
buy the oil FROM our workshop and you don't pay labour, 26-28 bucks per litre
i have one in my car
also comes with afr and voltage readings though im uncertain of accuracy
so far so good, its been 9 months or so and still going well...not bad for the price either..