Hi all, first time poster and I have a problem with this car I obtained some 4kish miles ago in February. It's a 04 mazda 6s with 183k miles on it now.
I obtained the car in California, also got the extended warranty on it to so figured it should be alright as much as driving back to WA state with. When I had a mechanic look at it the first time they said oil level was dangerously low, so I figured it was leaking a lot. It has some minor leaks so thought I'd try to address those first. Replaced the PCV valve and valve cover gaskets were leaking so replaced those too. It's still leaking a few drops overnight so coming from somewhere else too but this thing is definitely consuming way more oil than it's leaking, because after a ~200 mile trip on the highway now its lost nearly half a quart if not more. I've done some research on here and other forums with the PCV being a common problem, but after that still consuming this much what can I do before considering expensive full rebuild or looking for a replacement engine?
I'm a oil noob as well and don't know what brands are best or what can help alleviate this, the oil change it did have was with standard 5w-20 Pennzoil motor. Can high mileage or synthetic/synthetic blends help this at all, or is using a heavier weight oil recommended? Will using some additive or doing something to clean the engine like Seafoam, MMO, AutoRX or whatever else things claim to help oil consumption help? The engine as far as I can tell still performs just fine, did a tune on it recently and runs great, its just using a lot of oil especially on the highways I think. Any input greatly appreciated. Thanks.
I obtained the car in California, also got the extended warranty on it to so figured it should be alright as much as driving back to WA state with. When I had a mechanic look at it the first time they said oil level was dangerously low, so I figured it was leaking a lot. It has some minor leaks so thought I'd try to address those first. Replaced the PCV valve and valve cover gaskets were leaking so replaced those too. It's still leaking a few drops overnight so coming from somewhere else too but this thing is definitely consuming way more oil than it's leaking, because after a ~200 mile trip on the highway now its lost nearly half a quart if not more. I've done some research on here and other forums with the PCV being a common problem, but after that still consuming this much what can I do before considering expensive full rebuild or looking for a replacement engine?
I'm a oil noob as well and don't know what brands are best or what can help alleviate this, the oil change it did have was with standard 5w-20 Pennzoil motor. Can high mileage or synthetic/synthetic blends help this at all, or is using a heavier weight oil recommended? Will using some additive or doing something to clean the engine like Seafoam, MMO, AutoRX or whatever else things claim to help oil consumption help? The engine as far as I can tell still performs just fine, did a tune on it recently and runs great, its just using a lot of oil especially on the highways I think. Any input greatly appreciated. Thanks.