.this is an interesting piece from Bill Sherwood's Auzzie site:
Oils
& filtersThe oil you use in the 4AGE will also affect its performance, though you won't really notice much difference on the road.
The only oil you should use is a full synthetic, such as Mobil One 10W-50 or the like. If you're in a country where the temperature isn't too high and you want that last little bit out of the engine, then I recommend Shell Helix Ultra 0W-40, which can give you an additional 5hp or so over any mineral oil. The only hassle with that oil is that it gets very 'thin' when hot, so it must be kept to a reasonable temperature by using an oil cooler, or if in a road car by not running flat out all the time. (give the engine a break for 30 mins from running flat out by driving slowly) To give you an example how much difference they can make, I used to use a synthetic oil for regular driving, but when I ran my car in an event at a race track I decided to run a good racing mineral oil
(another really dumb thing I've done ...) and much to my surprise it wouldn't start on the morning of the race day, because it wouldn't spin over over fast enough. Luckily I had parked it on a hill and so I could roll start the car. Note that part of that problem was that my starter motor was a little tired, but this is typical of aging 4AGE starters anyway.
The standard Toyota oil filter is excellent, and they are
(AFAIK) the same unit used by TRD for racing. If you feel that you need a larger filter, the one used on the UZ series of engines also fits and has about 48% more volume. -do people on here agree, of have foung noticable performance gains with the thin synthetic oil? seems a nice cheap way to squeeze a bit..cheers
