Meh, I ran Redline in a $500 Focus, lol, to each their own.Boutique oil in a 23 year old Corolla seems like a fool's errand.
Why pay double the price for a product that's harder to get only to put it into a 20+ year old vehicle???
Any reasonable person looking at that picture and reading OPs comments would conclude to carry on with the same regimen that got the car to this point.
The varnish isn't hurting anything.
Ha! I have a feeling the bugs are being worked out and the EV motors are going to last forever. They won't be the source of EV issues.I wonder if after almost 250K miles EV owners are going to obsess equally over the appearance of their motor commutators, windings and brushes?
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Yeah it does burn oil, but it's not bad, I don't think rings are seized up but the oil control rings are always going to be an issue unless the engine is rebuilt. My last OCI was 2800 miles and the oil filter had a little bit of sludge in it, so I'm just going to continue doing what I'm doing until the filters are mostly clear. I notice the oil burning is not as prominent on brand new oil(when it's thin).
This^^^^^^^^^.Just use an oil that meets spec and change it at reasonable intervals. Don't worry about the varnish.
Actually you should perhaps go back and re read the post since you have missed it.Boutique oil in a 23 year old Corolla seems like a fool's errand.
Why pay double the price for a product that's harder to get only to put it into a 20+ year old vehicle???
Any reasonable person looking at that picture and reading OPs comments would conclude to carry on with the same regimen that got the car to this point.
The varnish isn't hurting anything.
Perhaps you should go back and reread OPs post as well.Actually you should perhaps go back and re read the post since you have missed it.
OP said it’s not clean and he would like to get it there (clean) so overkill’s advice is pretty valid.
Simply doing what was done will be a sure way to continue getting what you get which is not what was asked for. Esters or AN’s regardless of who blends them together will clean the varnish. His request is actually quite reasonable.
So he's asking what people's thoughts are about improving the varnish condition.I know it's not as clean as some engines, but I'd like to get it there, what are your thoughts?
If varnish is bothering you that much then yes I guess lots of good advice here. The oil burning issues had a bandaid fix with Rotella T6 5w40, courtesy of @LeakySeals, however I dont know if the new formulation of t6 is still a solution (i assume if you are burning any amount, that might mess with the cats).Yeah it does burn oil, but it's not bad, I don't think rings are seized up but the oil control rings are always going to be an issue unless the engine is rebuilt. My last OCI was 2800 miles and the oil filter had a little bit of sludge in it, so I'm just going to continue doing what I'm doing until the filters are mostly clear. I notice the oil burning is not as prominent on brand new oil(when it's thin).
What's Benniefix?... Or did you mean Berryman B-12?If varnish is bothering you that much then yes I guess lots of good advice here. The oil burning issues had a bandaid fix with Rotella T6 5w40, courtesy of @LeakySeals, however I dont know if the new formulation of t6 is still a solution (i assume if you are burning any amount, that might mess with the cats).
My personal take on the 1zzfe oil burning issues is the Benniefix is the only way. The varnish seems to be a common finding on the 1zzfe oil burners, but that might just be a coincidence.
Bennie is the person who first documented the 1zzfe fix on this generation of Corolla.What's Benniefix?... Or did you mean Berryman B-12?
So, what's the fix? Drilling additional holes in the piston?Bennie is the person who first documented the 1zzfe fix on this generation of Corolla.
I have heard a couple of chemical fixes like piston soak with Berrymans and xyz products, but most documented trials did next to nothing. The 1zzfe motor was really a bad motor and if the ownership OCI history was sketchy it didnt do any favors.
Drilling holes or installing updated pistonsSo, what's the fix? Drilling additional holes in the piston?
That would cost more than the car is worthTo me, this seems like a great candidate to try @High Performance Lubricants HDEO that @wwillson has been using, which has yielded significant carbonaceous materials, which we assume is from the ring land area, in his oil filters. I'd skip any specific cleaners and just run the oil. Dave may also recommend something different/more affordable, depending on your budget.
Love the look of the intake (my '99 Corolla) but of all the stupid things, see attached photo of where the wiring pigtail connector is for the crank sensor . Drain coolant, pull manifold to get to it. 'Cmon Toyota! Under runner serving cyl 2. Do I have this right? I need to suss-out whether mine is bum...Psshhh. That car will run regardless. Our 98 Prizm with the same 1ZZ has 200K+ and runs great on M1 0W40. Ours consumes about a quart every 5K and will easily get 40 mpg on a long trip. I love that original port tuned intake!