Thread: engine oil

Originally Posted by mattmac

I went to the local truck place to get a 20lt drum of Castrol RX Super but they now only stock RX Super Plus which is apparently suited to more modern engines- anyone tried it out. Would also want to use it in the LT95 gearbox/TC.

Do you mean RX Plus?

If so looks OK.

Sorry i meant RX-Plus.

How much for 20 lites?
I use Gulf Western 15/40 at just under $100 a drum.

I usually pay around the $100 mark for RX at truck spares place.

Steve

when supercheap have their regular discounts you can get RX Super for around $90 for 20 litres

I have tried many different oils in Isuzu, the best so far has been Repco 15W/40 diesel. I'm paying about $60 for 10l, I'm getting better economy and the engine is smoother than with other brands I've tried. Repco brand oils are blended by Penrite.

DO NOT USE DIESEL OIL IN GEARBOX! The detergents and friction modifiers will destroy your synchros in the main box,and the thrust shims in the transfer. Penrite HPR 30 is the only oil that I have found that works correctly in the LT95, due to no friction modifiers.

Originally Posted by landrover dave

DO NOT USE DIESEL OIL IN GEARBOX! The detergents and friction modifiers will destroy your synchros in the main box,and the thrust shims in the transfer. Penrite HPR 30 is the only oil that I have found that works correctly in the LT95, due to no friction modifiers.

Some owners are using Syntrans 75-85 (which is a lightweight long life gear oil) in the gb with good results.

Your statement above is interesting, the Castrol site includes RX Super and GTX diesel as some of the recommendations for the engine and notes that engine oil may be used in the LT95....... so I'm left wondering what you're basing your statement on ? ?