Originally Posted By: ssneakster
I've got the 3.5 litre V6 and I'm just curious what OCI the experts here would recommend using OEM Toyota filters. It doesn't do any towing so I'm guessing I'm OK for 5000 miles with conventional and maybe close to 10,000 with a good synthetic. Is it a bad idea to leave the filter in for 2 conventional oil changes @5k miles? I've noticed the new Sienna uses the same filter and recommends 10k mile intervals. Thanks guys.
Hi ssneakster - We would strongly recommend that you install a new oil filter at every oil change, per your OEM manual (all OEMs insist on changing the oil AND the filter at the interval). You see, over time the filter accumulates particulate (like dirt, wear metals, etc.) that has been trapped, until it reaches a point where it is possible for oil passage through the filter to be obstructed - and you certainly don’t want an obstruction of oil flow to your critical engine parts!
Furthermore, engine oil filter systems do have by-pass valves to prevent a catastrophic failure due to little-to-no lubrication getting to your engine – that’s the good news. The bad news is, that once the filter reaches its filtration capacity, the filtration system will go into by-pass – which means raw particulate is then allowed to enter the engine “unfiltered” (which can, and will, cause accelerated wear, etc.)
Bottom line, it’s worth the money to go ahead and change your oil filter when you change your engine oil at the proper oil drains set by your engine OEM. - The Pennzoil Team