Recommended oil for gu td42t

Barrel,

Go hereand troll down to Mobil / Products and Services / Lubricant and Specialties / Lubricant Recommendations - and then select your vehicle details.

If you don't like Mobil, Shell and some others have a similiar recommendation system.Cheers, Jim

"Lead, Follow.....or get out of the way!!"

Barrel
The oil I like to use is Caltex Delo 400. It has the highest API rating, CI-4/SL. Most other diesel engine oils are either CH-4 or CG-4. The later the classification the better engine protection it provides. This is indicated by the second letter, C"I"-4 being the most current for diesels. (the first letter "C" stands for compression ignition). It is the same for petrol engines with the API rating SL being the latest classification. (The first letter "S" stands for spark ignition). If you are going to use Delo 400 I would suggest getting it from the distributor in 20L drums. I pay $79 for a 20L drum in Perth which makes it $4 per litre. I think that's a bargain for such a high quality oil. You pay about $32 for 5 litres at a Service station. Another CI-4 rated diesel engine oil is Mobil Delvac 1300 super. Not sure of the price though.
Cheers

try a "search" on this forum as you'll find a thousand posts giving you pretty well all the info you're afterNext Trek - Carawine Gorge, Skull Springs & Nullagine