What do you guys recommend for an '06 xB.....synthetic or regular oil???
Thanks!

 

Synthetic in everything... and use a true synthetic

 

I use Mobile 1..and be sure you buy a TOYOTA filter..they have a anti siphon/back flow valve in there that other filters do not have

 

i'm got a huge increase in mpg when i use royal purple and a K&N oil filter

 

mobil 1 has changed..not for the better...other filter not all have the same design now

 

what are you running in yours?

 

Amsoil, with Amsoil filter

 

I'd stick with the Toyota filter..the Amsoil filter doesnt have the valve

http://www.amsoil.com/storefront/detail.aspx?ID=3444

 

x2

 

I use toyota filter and redline oil

 

having oil where and when it is needed on cold start up is important...

the Toyoto and the K&N filters have anti drain back valves in them

http://www.knfilters.com/oilfilter.htm

 

actually you looked in the wrong place you are corrected
https://www.amsoil.com/storefront/eao.aspx
look at the diagram

 

General FYI - the valve does not matter in this application (xB). The filter is installed with the opening facing up. At no time is the filter empty.

Cant say its the same for the xA or tC.

 

If you look at UOAs, they show that M1 is NOT the best synthetic for our application (xB). Pennzoil Platinium shows less wear when compared to M1, and PP made my engine quieter and smoother over M1.

There is no "best" oil for every application. Its not that easy.

 

true add pack is important.......but I as a rule stay with true synthetics Amsoil, Red Line, Royal Purple

 

it's not the filter being empty that is of concern...I dont believe any filter is ever empty

what the antidrain back valve..helps to keep oil up in the head..where it is needed upon start up


Sciond
I stand corrected...thanks pointing to the right place
I havent priced out all 3 of the filters
I'm wondering which is the least expensive???

 

Fair enough.

Reducing wear is what leads me to choose what I do, regardless of the base oil (GIII vs. GIV)

 

I was thinking that it is best to get a few miles on the motor before switching over to syn oil. Certain components need to develop a wear pattern, ie cam tappets. Of course I am speaking from the prospective of building high output air-cooled VW motors. I don't know the specifics of the Toyota internals therefore for all I know it could be a good thing to use syn oil from the moment the motor is assembled.

 

[quote="MadMike550"]it's not the filter being empty that is of concern...I dont believe any filter is ever empty

what the antidrain back valve..helps to keep oil up in the head..where it is needed upon start up[quote]


Huh?
ADBV do not allow oil to drain out of the filter through the oil pump when the engine is stopped. They don’t "keep oil up in the head".

When the engine is next started, oil must refill the filter before full oil pressure reaches the engine. The anti-drainback valve, included in the filter when required, prevents oil from draining out of the filter. This ADBV is actually a rubber flap that covers the inside of the inlet holes of the filter. When the oil pump starts pumping oil, the pressure will unseat the flap. The purpose of this valve is to keep the oil filter filled at all times, so when the engine is started there will be an almost instantaneous supply of oil to the engine.

But because of the way the filter mounts, the ADBV has no benefit in our application.

 

Not sure but I can telll with the extended drain intervals Amsoil seems to be very reasonable as a preferred customer