2001 2.7L Taco abruptly started to burn oil

My 2001 Taco has 2.7L and is 4wd. It has 230,000 miles. I've always run Mobile 1 synthetic in it. Between 220,000 and 230,000 miles it went from essentially zero oil consumption to approx 1000miles/quart. The last oil change, I put in qt of Lucas oil treatment and switched to conventional oil. After 500 miles, the oil consumption is very low but not zero.

Does this engine normally need rings about now? It had valves at 210,000. Of course I'm suspicious of the valve job but the machine shop is very reliable and my mechanic feels the valves are not the culprit.

I love the truck and will do what is necessary to fix it. The only reason I would get rid it is to get a newer tacoma or a diesel one if they ever come out.

Considering a long block to just get this done once and for all.

Would appreciate any advice.

Thanks,

Glen

 

I would do a compression test.

If my block had a history of running strong and cool, I would want to keep my block and have it rebuilt.
I rarely throw in with rebuilt parts unless it's on my core.

 

Check your PCV, if they get stuck it can cause abrupt oil burning.... but maybe not as much as you are claiming. Cheap and easy thing to try though

 

+1. They're super cheap too, so it may be worth just replacing and seeing if it works.