Isuzu Trooper Owners Club UK™

[SOUTHPAW26]

What kind of oil are you guys running in your 3.1 Diesel Bighorns? How often do you change it and what is the capacity with filter change ?

[Google]

[the flower man]

hi mate and welcome  i run my bighorn on 15/40 semi sinthetic. spelling is bad 6 litres with the oil filter and every 5000 miles . diesal is heavy on the old oil mate so you have to change as often as this. hope that helps
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presumption is the mother of all f**kups

[shinz]

As TFM has said, 15/40 whether you go for semi synth or not, that is the manufacturers recommendation. There is very little point in going for a higher rated oil than 15/40 as this is the grade the engine is designed for, later engines with tighter tolerances & in the case of the 3.0 4JX1 motor  with its oil operated injection system need 5w-30 fully synthetic but the 3.1 doesn't. Changes at the recommended intervals with a good quality ( read name brand or identifiable source oil) are preferable to spending vast sums on a fully synthetic oil that you don't need. The handbook recommends changes at 10,000 kms or 6000 miles. This would be OK but if you do a lot of short runs then 8000kms or 5000 miles would be better.
Steve.
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95 Bighorn Fieldstar LS 3.1 TD

[dxmedia]

Handbook here for the Monterey 3.1 says 5K miles (UK) and IIRC it used to say 3K for the trooper.

Any 15/40 which is sutiable for a turbo diesel engine and is at least a semi - don't put grinding paste mineral oil in an engine.
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