How long would will you go on Synthetic before next change ?

The OP is in America! You damn Canadians and your metric. Lol just givin you crap

 

Definatly full of poop! Do it every 5k. How much did you pay for your truck? Worth it every 5k

 

I do 5k miles b/c its an easy interval to calculate Nothing wrong w/ 7500 imo though.

 

Two of my friends with 2011 FJ. They have the new (improved) engine and they are, both, telling me that- the engine is coming with synthetic and is required to change every 10k.
Now ,, we all know that the only difference is the addition of a second VVTI and nothing else.

It is up to you if you and what makes you feel good.
Personally,, with the supercharger I use -extended life fully synthetic- and change at 10k's.

 

The only way to really know is to get an oil sample analyzed after each oil change. I think for like $25 you can send some in to labs that do this sort of thing. After break-in, you can keep extending intervals until it's still within tolerance. Everyone will be different depending on how you use your truck and the environment it's run in. Of course you would have to be pretty anal to go through all this hassle and expense, but otherwise your just using someone elses opinion.

IMO, FWIW, I did a break-in change at 2k, next at 5k, and now I go 7.5k between, using synthetic. If that's not OK, well, I just don't care that much!

 

I try to change every 5000 miles, but have gone as far as 6000 miles. Depending if I forgot to order the oil or have it on hand.

 

im going to try and go to 10k. whats the point of going synthetic if you're just changing it every 5k.

 

should probably mention for any higher mileage tacos(160k+) out there if you've been running regular it's not a good idea to switch to synthetic you might see more oil leaks and burn more oil or start burning if you didn't before

 

Exactly. The oil is DIRTY. Dirt/sludge that the filter can't remove.
I change mine (Mobile 1) every 5k miles and its dark dark brown.

 

5k

 

I do mine with Moble 1 every 5,000 miles also