thats what my assumption is. try the K&N's filter. it has the anti-drain valve which locks in the oil the moment it stops flowing. even you can try amsoil filter as well. i couldnt find it here in Saskatchewan but when i was in Ontario there was an Amsoil dealer who had the proper oil filter for MO's.hfelknor said:"Oil filter is a 35000 mile filter with only 3000 miles on it."
Maybe the next one, the anti drain valve will work........
You are likely correct.ekaxel said:If this is a "drain valve" issue, how come it never happens/ happened when I change the oil and filter and start the engine with a dry filter???
Do you usually change the oil and filter after the car has been sitting for a week? Of course not. If an oil change is done properly, the engine was recently run and a decent film of oil is on all the parts. So when you start the engine the parts are protected during the few seconds it takes to fill the oil lines.ekaxel said:If this is a "drain valve" issue, how come it never happens/ happened when I change the oil and filter and start the engine with a dry filter???
I would not recommend to use Amsoil. The only oil they have certified by API is XL (non-synthetic). None of their synthetic oils has ever been certified by API.ekaxel said:Oil is Amsoil 0W30 (recommended by them for any engine where 5W30 is specified).