Oil too good for my GQ diesel?

[Mark2]

Was at my local Castrol distributor today, enquiring about prices on 20 liter drums of the new Castrol RX-Super diesel oil. He asked me how old my car was (1990 GQ 4.2 diesel,275000 km)

He said that due to the new CI rating of the oil, it might clean my engine too much and cause it to start using oil as some apparently have. He suggested I stick to using Castrol GTX Diesel which only has a CH rating. My engine currently doesnt use any oil between 5000km changes.

Is this a risk or should I use the oil with the best rating? There is no cost difference (all are $75 for 20litre drum)

[bazzle]

Just stick with the GTX diesel if your not sure. The distributor hopefully knows best.

Bazzle

[jim808]

Was at my local Castrol distributor today, enquiring about prices on 20 liter drums of the new Castrol RX-Super diesel oil. He asked me how old my car was (1990 GQ 4.2 diesel,275000 km)

He said that due to the new CI rating of the oil, it might clean my engine too much and cause it to start using oil as some apparently have. He suggested I stick to using Castrol GTX Diesel which only has a CH rating. My engine currently doesnt use any oil between 5000km changes.

Is this a risk or should I use the oil with the best rating? There is no cost difference (all are $75 for 20litre drum)

Is there any reason to change if your happy with your current oil, it seems to be giving you a good run so far!

Jimbo

[Josh_GQ]

does anyone have any deffinent info on this?
i just did an oil change last week with RX super on 90' GQ with 235 000

[GQboy]

Funny you should say that , I was talking to a friend of mine ( he is a diesle mech ) he said the exact same thing. Apperntly it cleans everything to goood on some of the older modle engines

[griff]

I changed the mower oil the other day, only had some Valvoline CI-4 that I'd used on the Cruiser. Mower now does a good job at smoking out Paper Wasps...