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Originally Posted By: Rolla07 2.5 qts per 1k miles? Id go at least 10k miles before a full change. Your ad pack will always be fresh. Put on a good filter and keep going. Id also go to a thicker oil and a high mileage one as well. That might help slow the consumption and save you money on...

Originally Posted By: zeng Originally Posted By: Emanuel Originally Posted By: danez_yoda How does the oil look on the dipstick at 3k with that much fresh oil added? It doesn[t looks black, but it does look dark brown, but I have learned in this forum that dark oil can have more usable life in...

Originally Posted By: Rolla07 Its the known oil return hole issue common on those year corollas. Thats likely causing the consumption. 7AFE engine not 1ZZFE but the 7afe also had problems with the oil return holes

I really care about the car, I care about it a lot, but based on the consumption I am replacing the 3.7 qts oil capacity every 4000 miles. My plan is to do 3k filter change intervals and drain the sump every 6k miles.

Would you stop changing oil in a engine that burns 1 qt of oil every thousand miles if you wanted that engine to last as much as possible?

Originally Posted By: StevieC You can hone the cylinder on the vehicle from the bottom end. I have done it with my dad (mechanic) with a tool that goes onto a drill. It works in situations like this and the new rings wear into place and start to seal properly thereafter. That is a great idea...

Originally Posted By: wavinwayne Originally Posted By: Emanuel But I don't think a turbo would last 15 years and 300k miles My 2000 VW GTI 1.8L turbo has 327k miles on the original turbo, with less than recommended maintenance. Well you are right, but nowadays the turbos of downsized engines...

Originally Posted By: zfasts03 Are these the cars that the odometer stops at 300,000 miles? My odometer is in kilometer so at 620k ish miles it will start counting from zero again. I doubt it will get that mileage in the next 20 years

Originally Posted By: Bryanccfshr I don’t know what engine family or make you have but I really would lean to a (5w30or 10w30 mixed fleet hdeo for combine potential availability and detergency if you have to extend for unforeseen circumstances. A Toyota 7AFE engine, the fuel has a high sulphur...

But I don't think a turbo would last 15 years and 300k miles

Fiat do Brazil is great

Originally Posted By: StevieC FIAT = Fix It Again Tony. Down here in South America Fiat is a very trusted brand, but it is more a Brazilian brand than an Italian one, we have special Fiat cars designed for South America

Engine oil price has increased 2700% from March until now, so don't want to waste oil but I don't want to neglect the engine neither. Do you think that a 4k miles interval would be safe? Or could I change the oil every 5k miles?

Originally Posted By: Silk Originally Posted By: Emanuel Do you think that 35lk miles old rings could be cooked up? By cooked I mean overheated - I doubt apart from a seizure anything has happened to new pistons in 35,000km. 35k miles = 50k km

Originally Posted By: Bryanccfshr In your situation I would simply run a hdeo for now, fuel,quality etc may be questionable and it is best to use traditional ways of preservation for longevity. That means a heavy duty engine oil changes more frequently with a focus on preventing overheats, and...

Originally Posted By: rollinpete Keep us in formed...I have some oil consumption although I think my problem has to do with bad valve seals...I put 3 oz of the 2 cycle mix for 17 gallons, haven't noticed any change in how the engine runs, also been running hm oil recently will have to see if...

Originally Posted By: rollinpete Keep us in formed...I have some oil consumption although I think my problem has to do with bad valve seals...I put 3 oz of the 2 cycle mix for 17 gallons, haven't noticed any change in how the engine runs, also been running hm oil recently will have to see if...

Originally Posted By: JohnnyJohnson Originally Posted By: Emanuel Originally Posted By: Silk If it's the same car you've been talking about, you cooked it and the rings have lost tension. The engine was overhauled 35k miles ago with new pistons, rings, gaskets, seals and bearings. It overheated...

Originally Posted By: Silk If it's the same car you've been talking about, you cooked it and the rings have lost tension. The engine was overhauled 35k miles ago with new pistons, rings, gaskets, seals and bearings. It overheated pretty bad 12k miles ago, it burned 1.5 qt every 1k miles before...

Originally Posted By: StevieC You could also have someone pull the bottom end apart and put in revised rings/pistons that don't burn oil. The oil savings alone over the next 200,000 miles you want will be worth it. This can be done without removing the engine from the vehicle if it's done on a...