Oil in my HZJ78R Troopy

Old dog
Why did you change, just because Castrol has a name and markets Magnatec doesn't mean it suits your engine or is the best performer in it.

Try using Mobil Delvac MX or Caltex Delo and you may find it seals the rings better than most and it won't use much oil at all. These oils, if bought at a depot or truck service centre won't cost any more than inferior oils do.
or
just use the original oil you used if happy with it.
If they, Castrol, have to use a cricketer to promote their oil then it musn't be selling itself by being good. Only good if a cricketer uses it? Doesn't make sense to me.

Ross M

Why are you changing the oil at 1/2 the service interval?
The schedule for them is every 10000
Besides that its very unusal for a 1hz to use much oil.
It can vary alot on the dipstick and the only real way is to check it in your driveway parking at the same spot after leaving it to stand all night
Even then you can get inconsistent results as long as its above add all is good

Any oil within the specs will be OK.... cheap or expensive.

Using oil is not a bad sign and many engines these days will use oil between intervals.

Now for the disclaimer..... excessive oil consumption is BAD (full Stop)

Your idea regarding friction.... the lesser the friction the lesser the wear the more oil you use, the higher the friction the more wear and the lesser oil you use.... so in that theory you're better with an oil that does reduce friction.

The lesser the friction better the fuel economy, more power, longer component life.

As I said there is a BIG difference between oil use and excessive oil use.

Ok for starters STOP getting her to warm the wagon up for 10min
No one ever recommends that especially the manufacturers. It does little to warm up the engine and just annoys the neighbours
In 15min she could ride or walk to work if its a 5 min drive
The best way to warm it up is idle it for about 20seconds until oil pressure is up then drive it normally without over revving it

i used magnatec diesel in my prado for a few oil changes and the prado burnt it too .
My local Repco manager said other people had the same result with it.

Dog mate you have to go a very long way to do better than the diesel spec oils.

AND most of them will handily outperform and out spec many of the higher priced more heavily promoted retail oils...in both diesel and petrol applications...even in the same brand.

What ever oil you want to look at...load up the spec sheet and put it beside any of the good diesel spec oils.....almost without exception the diesel spec oil will spank the other.

The top ( by independent assessment) three generally available diesel spec oils world wide are Mobi devlac, shell rimular and caltex dello...and there is bugger all to seperate them.
about half a pace behind is castrol RX super.l

In all but the very latest vehicles any of the above you cant go wrong with.

In the very latest vehicle you may have to look and select a grade and spec from the oil ranges above to meet the spec from the manufacturer.

In caltex for exampe that may mean stepping up from dello 400 to dello LE, for a modern common rail diesel.
BUT be assured somewhere in there there will be an oil that meets or exceed the spec you need and it will be a better oil than lots of the overpriced over sold retail oils.

Now...you should..if you are shopping well be able to buy any of the above for under $100 for a 20 litre.

Buy where the truckies buy.
Local fuel depot or service station where the truckies fuel up.

OH......BTW..buy ya filters where the truckies doo too......diesel spares shop...you will pay less for a better filter....may not be a brand you recognise from the retail stores.
Sakura, donaldson or fleetguard you can not go wrong with.

cheers