981uz

So my ls400 has been maintained excellent over its life all records I have. The last 2 oil changes were 6/1/2015 at 140,000, and 11/11/2015(mileage wasn't indicated on sheet, someone got lazy). I can only assume 143,000 miles. I bought the car with 144,000 it now has 145,000. The oil I believe used is mobile 1 synthetic. Although it hasn't been 20,000 miles since the last oil change its clear the oil/car has done some sitting as the car has only aquired 6,000 in a year and a half. Taking it in to get a oil change tomorrow should I be worried about anything have shortened the life span of the motor??

Banshee365

No.

I run 7,500 mile intervals with Mobil 1 5W30. You're fine. Use an OEM filter if you can.

Scraape

x2 for mobil 1. I run 10w30. OEM filters are good or mobil 1 filters are rated good, they even have the extended performance ones that they say will last 15,000 miles.

RA40

iTrader: (6)

No issues with the oil. Ours is driven about 5K annually so the oil typically is changed at about a year and 4 months or until it hits 7,500 to 8000 miles.

anesthesia

No sweat about it, just change it once a year if not driven much or 7500 mile if using synthetic oil.

Legender

Same as above... with my cycles and cars often times they don't get changed but once a year. Whether they need it or not.

timmy0tool

iTrader: (7)

my OCI (oil change interval) nears 10k on full synthetic. there are MANY threads on OCI, and to answer your question in your situation I would not worry if the car had synthetic oil.