2007 rav4 t180 110k miles.
I get alot I mean alot of white/blue smoke after being stuck in traffic.
I have been out on 200+ mile run and nothing at all. But as soon as I hit traffic the smoke starts for about a minute or 2 then clears.
It runs perfect no oil or water lose and seems very random about how many times it happens. Some weeks I can happen every day on my 20mile trip to and from work. Other times it can go for weeks without a puff.
I have started using some fuel additive and it seams a bit better but as soon as I fill up on cheep fuel the smoke starts again at random.
Any ideas or common faults/fixes for this?