Holden Jackaroo 2004 Problems

THERE really isn't a rule of thumb you can use to determine if it would be beneficial to fit an external oil cooler. It comes down to the weight of the trailer you're towing and the conditions in which you'll be towing it. If the trailer or caravan you're towing is close to the rated limit of the tow vehicle, and you're planning to tow it in hot or hilly conditions, then it would be wise to consider fitting a cooler. Carmakers won't tell you that. They won't admit their cooling is inadequate or borderline. Most carmakers develop their cooling systems to cover average use, and some will offer an uprated system for those wanting to use their vehicle in more arduous conditions.