Ruff idle and intermittent power loss alleviated with Royal Purple injector cleaner !
#46
I've used the Chevron Techron cleaner in the past..
But next week, I plan to pick up another bottle of Toyota "EFI Tank Additive"
https://www.clublexus.com/forums/is-...ve-review.html
I've used it a couple times over the course of 7 years with great results..
Joe Z
But next week, I plan to pick up another bottle of Toyota "EFI Tank Additive"
https://www.clublexus.com/forums/is-...ve-review.html
I've used it a couple times over the course of 7 years with great results..
Joe Z
#48
Pole Position
is there a part number for this oem additive?
#49
#50
Pole Position
#52
I will seafoam my 07 is250 with 70k miles over the weekend because when I floor it, it would hesitate for a second and then take off. Don't know if this is normal on all the IS.
#53
Lexus Champion
#54
Tech Info Resource
iTrader: (2)
Normal on all IS250. If you look in the 2IS forum, you will find carbon issues with the 250's engine are common. 350s and Fs do not have these issues.
#60
Instructor
a lot of these injector cleaners are just Ethanol.
Go pump 4-5 gallons of E-85 in with your normal tank of gas, and I bet it will clear right up.
I'm betting the IS-F has enough fueling to use E85 full time. Especially since the computer is always adjusting A/F to a specific limit.
I ran about 4 gallons in my fill up without any issues at all. Didn't really notice any changes though, but certainly never had a funny idle.
Go pump 4-5 gallons of E-85 in with your normal tank of gas, and I bet it will clear right up.
I'm betting the IS-F has enough fueling to use E85 full time. Especially since the computer is always adjusting A/F to a specific limit.
I ran about 4 gallons in my fill up without any issues at all. Didn't really notice any changes though, but certainly never had a funny idle.