which oil to use?
TReK
Joined: Nov 2009
Posts: 2,433
Likes: 5
From: Woodway, WA
I'm running Amsoil 5w40 Euro. Amsoil says it can go a full year between changes but you need to get an oil analisis done around 4K miles of use to make sure everything is ok. Otherwise it may require more frequent changes. As long as the oil in my D2 tests ok I'm just going to change the filter a few times a year and keep the oil topped off.
For the OP, I also run Rotella (either the full syn or the syn blend), my Disco seems to be a little noisier any time I've run Mobil 1 full syn.
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Rock Crawling
Joined: Jan 2009
Posts: 414
Likes: 2
From: Charlotte NC
It depends on the ambient temperature, also if the engine has sludge or not and the oil pressure.
Sludged up engines would better with the thinner oils to prevent lifter noise.
In extremely cold temperatures 5W20 is what I have used to allow cold startup.
In CLT NC climate I use 5 W 30 in the winter and 5 W 40 rotella in the summer on the 04. On the others with the 4.0 L I use 15 W 40 and on the 2000 DII with sludge, I use 5w30 to keep the lifters quiet.
Sludged up engines would better with the thinner oils to prevent lifter noise.
In extremely cold temperatures 5W20 is what I have used to allow cold startup.
In CLT NC climate I use 5 W 30 in the winter and 5 W 40 rotella in the summer on the 04. On the others with the 4.0 L I use 15 W 40 and on the 2000 DII with sludge, I use 5w30 to keep the lifters quiet.
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p38spares
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May 14, 2007 03:55 PM
