Originally Posted By: VeeDubb
Originally Posted By: KingCake
Originally Posted By: VeeDubb
I used Valvoline Synpower 5w-30 in our Sienna with this engine. After 140,000 miles, no oil consumption and no evidence of varnish.
The main problem with these engines is not oil related IMO but rather coolant leak related. Lots of Toyota V6 tend to spring leaks via the head gasket or water pump. There is some anecdotal evidence by Toyota mechanics that it could be related to the super long life pink Toyota coolant. This is what I would focus on if you want a 200k-300k engine.
That's [censored]. The pink coolant gets blamed for problems in the 2az-fe too but it's casting issues and bum waterpumps from aisin.
You could be right.. No hard evidence which is why I said anecdotal. But considering that several Toyota mechanics are talking about it and it is happening across several different Toyotas engines/generations, I wouldn't rule it out as a possibility either. Regardless, Toyotas have a lot of premature coolant leaks. My Toyota gave out at 140,000 due to a head gasket coolant leak and I'm not unique.
Aside from the water pump leaks (and some occasional headgasket issues), you can pretty much count on needing to re-seal the timing cover at some point. On the 2gr-Fe, you'll need to drop the engine/tranny out together in order to get enough room to remove the timing cover. It is pretty much impossible to r/r the timing cover with the engine in the vehicle.
Originally Posted By: KingCake
Originally Posted By: VeeDubb
I used Valvoline Synpower 5w-30 in our Sienna with this engine. After 140,000 miles, no oil consumption and no evidence of varnish.
The main problem with these engines is not oil related IMO but rather coolant leak related. Lots of Toyota V6 tend to spring leaks via the head gasket or water pump. There is some anecdotal evidence by Toyota mechanics that it could be related to the super long life pink Toyota coolant. This is what I would focus on if you want a 200k-300k engine.
That's [censored]. The pink coolant gets blamed for problems in the 2az-fe too but it's casting issues and bum waterpumps from aisin.
You could be right.. No hard evidence which is why I said anecdotal. But considering that several Toyota mechanics are talking about it and it is happening across several different Toyotas engines/generations, I wouldn't rule it out as a possibility either. Regardless, Toyotas have a lot of premature coolant leaks. My Toyota gave out at 140,000 due to a head gasket coolant leak and I'm not unique.
Aside from the water pump leaks (and some occasional headgasket issues), you can pretty much count on needing to re-seal the timing cover at some point. On the 2gr-Fe, you'll need to drop the engine/tranny out together in order to get enough room to remove the timing cover. It is pretty much impossible to r/r the timing cover with the engine in the vehicle.
