Originally Posted By: saaber1
There is only one VTA can report of it being ineffective that I know of and that is on a car with over 60k miles and it had a VTA can for only the last 7k miles or so (numbers are from memeory and not exact) so the problems came from the first 57k or whatever with...
It's SI-1
"I" as in Iguana.
At least that's how it's listed on their web site. Cut and pasted from their web site and changed the font to make it clear.
Originally Posted By: saaber1
Back before I fixed the valve deposit problem by routing pcv gasses to the exhaust, I used the dsire method which involves sucking in lubromoly valve cleaner through a basketball needle.
Have you verified that you have indeed fixed the problem? There's been...
FWIW, I will probably be taking my manifold off and cleaning by hand. The reasons are that I'm cheap, I don't trust "professionals" to work on my car, and also.. I'm cheap but I don't do want to do something like this "half-assed". Oh... did I mention that I'm cheap?
Originally Posted By: dejavu
Apparently the back of the valves go untouched by any fuel additives you put in the gas tank on these vehicles. Is this true?
You betcha. Check this link as long as you're not too squimish about what the inside of your engine may look like.
Gooky Valves
For more...
Originally Posted By: d00df00d
Sorry man, didn't mean to spook you. Good luck.
No worries. I'm a noob here but I've been an occasional lurker here and I am a regular on a few automotive forums for several years. I've got a pretty tough I-Skin.
I'm just a bit flustered to discover that my Audi...
Originally Posted By: d00df00d
You keep making comparisons -- more than this, better than that, worse than the other thing -- without numbers or facts.
You mean like this:
Originally Posted By: d00df00d
Even if an additive is potentially harmful to oil, the net effect might be better...
I would like to propose that a direct injection engine should use cheap gas.
Direct injection engines have the fuel delivered directly to the combustion chamber. Because of this the fuel does not wash over the intake valves and does nothing to keep them clean. Additionally, the fuel being...