Originally Posted By: y_p_w
Originally Posted By: Quest
Originally Posted By: Trav
What's wrong with a little carbon? Not talking excess build build up just a little.
I'll take a little carbon build up on the piston tops any day before a shiny new one, it does a pretty good job at protecting the piston..
most lurkers and pretty much 90% of BITOGers here are notoriously obsessed RE: overdoing things here on BITOG: from making their engines a mosquito fogger by using vacuum line feeding some stoddard solvent/kerosene mix, to nitpicking on marketing buzzwords on certain so-called "boutique" oils, additives, etc. and they have fun day-n-nite arguing till face turn blue.
Fact is: engine is designed to provide service, and if it gets to 200k or 300k+ of service before they become worn or tired and in need of major overhaul, it just means that their job is done.
Some engines were not properly designed/engineered due to whatever reasons, and these are the ones that may need additional helping every now and then. Examples like earlier Audi DI engines carboning up is a good example. Ditto with some other engines (such as the late Saab engines) where you must run some sort of high resiliency full-syn oil to keep it from thermal breakdowns, etc.
Fortunately, over 99% of the utilitarian grade engines out there still servicing the motoring world w/o too much fuss, and companies such as turdle-wax, etc. would still try to sell you a miracle-mile-in-a-can (just because they can) with all forms of buzzwords such as UCL, etc. that other motoring nation never have come across in their century....
Sorry folks, obsessions can only go so far. I live on the facts and I don't see much common sense these days....
Q.
I don't know about the "miracle in a bottle" stuff being absolutely necessary, but at the least a detergent level higher than EPA or (California) CARB minimums may be helpful. The Top Tier standard/organization was created by several automakers, and apparently their reason for this was because of all the vehicles being brought in for warranty issues due to residual and/or carbon deposits. They're not doing this to make money from licensing fees.
At the very least, the automakers themselves have sold bottled detergents. ACDelco has several. One bottle shape barely hides who made it for them. It's pretty well known that Chevron Techron Concentrate has been the basis for several fuel treatments sold at dealers. There's also a BMW part number, for which there are several aftermarket fuel treatments marketed as meeting the same requirements.
Yes they do. It's additional revenue. If people are going to buy the miracle in a bottle, why shouldn't they get into the game?