Originally Posted By: boxcartommie22
oh, i remember your oil burning issue..i agree with you then.i looked at the voa of mos2 and it has somewhere 4365 ppm...torco has their additive has> 9999ppm of moly..might be worth your while to look into that.. has antimony >9999ppm..
I purchased the burner in May of this year with 96k km (about 60k miles). It was typical old lady driven and maintained: she worked close to home (as a bank manager) and also lived next to one of the major commercial areas; so being next door to WM, grocery store, her work, etc, the car saw mostly low speed short trips (with lots of AC in summer). She also had an after market remote starter installed before her first winter with it, so the car saw lots of winter hours idling long enough to be log cabin warm by the time she got in it.
She changed the oil as per the OEM recommendation (every 5k miles or 6 months), as well as other major fluids (ATF, coolant) through dealer service. Then last 2 years through mostly Meineke. I got it $1,500 under its market value, but it came with some kinks I worked our, or am working on:
- Nobody had checked the PVC system in 10 years; the factory valve was completely gummed up ($11 to replace myself with dealer bought part);
- Because of the above, there was considerable blow-by getting into the combustion chamber and building up in the oil;
- Her short trips and winter idling meant she should have stuck to the severe service schedule of 3k / 3 month OCIs instead of 5k / 6 months.
Due to all of the above, the engine was burning oil at that rate (quart / 1,200k) and sludged. I changed the air filter (it had been changed once, about 4 years ago, when I got it), cleaned the TB and TB butterfly valve using CRC intake cleaner, ran Regane, and then after changing the PCV valve, did my previous OCI w/ PP 5W30, 20 ounces of MMO in the oil, and half a bottle of mos2 as a cheap anti-friction/anti-wear additive. I got the PP on sale.
It cleaned up, but I'm still sticking to short 3-5k (and closer to 3k) OCIs even though I don't meet the criteria for severe service. I'll let it clean up for 1 or 2 more OCIs while I play around with different ways of maybe reducing oil consumption.
It was worth the 2k price I paid for it. Oil consumption is a known issue in this 8th gen Corolla but it has no impact on longevity - compression and engine life are unaffected. The transmission and engine will both long outlive the body, even with its oil thirst (engine & transmission good for another 5-10 years and at least another 300k miles; however body and underbody is unlikely to keep up the 25 years I'd need to put the additional miles on it, as I only do 20k/year.
-Spyder