DixieLex

...to date.

What have you done right?

MikeyK02

iTrader: (7)

Walnut blast as part as maintenance every 40-50k
seafoam in gas tank every 2 months
Run to redline a few times a week

knyg

I recently changed my sparks and boots at 80k.

I saw that I didn't have any major carbon build up. A few specks of black stuff, could just be dirt, and that was it.


I drive my car pretty hard like accelerate at 4-5k rpm before shifting.

I also just put in an oil catch can for preventive measures.

my car runs smooth like baby butt

Serifiyah

I have an 07 with 165k miles, with no carbon build up issues. Only do normal maintenance and run to redline couple times a month.

Gatriel

I've got 178k on the car. Regular maintenance and "a redline a day keeps the mechanic away."

chriso5573

2007 IS250 130,000 miles. Installed RR-Racing's catch can for the ISF and dump the sludge once between oil changes. Drive hard getting on the freeway to redline a few times a month. I have however had my transmission go out (blew 4th and stuck between 1-3rd) Installed a used one last week.

laobo979

iTrader: (5)

Bought my wife 250 brand new in 08 never had carbon issue once. Don't add anything to the gas either. I mostly pump only 93 shell. She does a lot of highway and doesn't drive it hard either at all. It at 145k now. Hope to get 200k before we upgrade.

heyarms

iTrader: (5)

Boost, methanol, and hardly ever driving it seems to do the trick lol

Jeff Lange

iTrader: (1)

What do you expect these to do? Just curious, as a few people have talked about doing this, but it seems like it would have little to no affect on carbon build up.

The walnut blasting on the other hand is a great idea.

Jeff

knyg

agreed. Seafoam in gas would do nothing for carbon buildup. But you can also add seafoam to oil and that could help a bit.

Its it's suppose to loosen any debris and it's should burn or flush out your exhaust or with oil change. 🤷*♂️

MikeyK02

iTrader: (7)

I actually just switched to the techron stuff. Seafoam i actually ran through the lines at the motor.

Taking to redline when the engine is at full temp is supposed to burn off carbon buildup as well. Figure if im running a techron type application it will help with breaking up and passing through said carbon

Walnut blasting was done two months ago so im at least good there.

Also studying on the 350 swap to just be done with it :P

aznKewlguy

iTrader: (5)

2006 is250 with 165k miles. Only issue ever had was transmission going out at 105k. Was rebuilt and never had any other issues. Oil change every 5k with synthetic. Drive it hard once in a while is all I do.

chriso5573

How hard was it to walnut blast? I honestly think if I get issues with the engine I'd just buy a totaled IS-F and do a swap. Not worth the effort for a 350 swap in my book. I so wish those that have done the swap would post more info on it. =/

Skier76

Good thread. I appreciate those who have have posted with mileage, driving habits and upkeep.

I'm just under 100k now. Oil has always been done at 5k intervals; full synthetic. Premium gas has been used since we bought it at 40k. No issues so far. I do mostly highway driving with it and do my best to rev it out every so often when it's up to operating temperature.

Aspect

From the guy I got to walnut blast my car he told me it's the same as any BMW but takes twice as long.