Oil Change Interval
So my question is should I wait for every 5K miles to reach to do oil change or should I still change oil every 6 months even if I drove only 3K miles in 6 months? I would really appreciate some opinions on this. Thanks!!
I just posted this quote from my 2004 RX 330 manual in another thread.
First determine whether your driving conditions warrant the 5,000 mile or the 7,500 mile oil change intervals. Next, consult the appropriate OM suppliment for the service needed. In either case you should change your oil at least every 6 months and sooner of you reach the mileage targets (5,000 or 7,500) before 6 months has elapsed.
This distinction is not just about oil change intervals but some other maintenance items as well.
Follow these guidelines to determine which interval to use.
5,000-Mile Intervals
Use 5,000-mile intervals if you primarily operate your vehicle under any of the following conditions:
•Extensive driving on unpaved or dusty roads.
•Towing a trailer or using a camper or car-top carrier.
•Repeated trips of less than five miles in temperatures below freezing.
7,500-Mile Intervals
Use 7,500-mile intervals if you primarily operate your vehicle under conditions other than those listed above.
Your vehicle is equipped with a dashboard light to remind you when the engine oil needs to be replaced. The light is amber and labeled “MAINT REQD.” When you turn the ignition key to the “ON” position, the light will illuminate for about three seconds to indicate that the reminder system is working properly.
After you have driven 5,000 miles since the vehicle’s last oil change, the light will illuminate for about three seconds and then flash for another 12 seconds when you turn the ignition key to the “ON” position. If you use 5,000-mile maintenance intervals, you should replace the engine oil at your earliest opportunity once the light starts flashing.
After you have driven 7,500 miles since the vehicle’s last oil change, the light will remain illuminated when you turn the ignition key to the “ON” position. When this occurs, you should replace the engine oil as soon
as possible, regardless of which maintenance interval you use.
Last edited by jfelbab; Jan 28, 2008 at 01:56 PM.











