I've been doing a 6K OCI on my 2013 Pilot when the 20% light comes on - We have owned the Pilot for a year and are putting about 16k a year on it. Engine has 100k and is not burning any oil between changes. Been thinking of doing a 8k OCI and just doing it April and October to make it simple. Does anyone see a problem with this ? And is there any benefit to using Pennzoil Ultra Platinum over regular Pennzoil Platinum for this OCI ? thank you !