Nissan Patrol Engine Problems

Nissan has told us that there was a service campaign on the ZD30 Patrol which revised the engine oil capacity and included all vehicles manufactured from launch (May 2000) until the end of October 2000. They recommend any owner with queries or concerns regarding their vehicle to contact their nearest Nissan dealer or the Customer Assistance Centre on (03) 9797 4114.

UNLEADED should be fine for your car. We checked with Nissan and they agreed that unleaded is the way to go.

According to Nissan the correct idle sped for your Patrol is between 750 and 800 revs, so your vehicle is within specification. Nissan says you can't adjust the idle speed manually as it is controlled by the electronic control module (ECM) and must be checked by a Nissan dealer. If you have any further concerns, a diagnostic check by a Nissan dealer can establish if there is a problem, and if so, which sensor is causing the variation in the idle speed.

I'M GUESSING Nissan covered the cost of the parts and you paid the labour, which is the normal deal with most companies once the warranty expires. Most people accept the offer for the same reason you did -- it's the easiest thing to do.

Did they hone the bores in the rebuild? If they didn't, or even if they did, I would be suspicious that the rings are not properly seated on the bores and the smoke is blow-by. The problem could also be because you didn't run it in properly after the rebuild and the bores have glazed.