- Joined
- Jun 24, 2008
- Messages
- 49,583
- Location
- London
- Car
- 2022 Hyundai IONIQ 5 RWD / 2016 Suzuki Vitara AWD
Speet-Tec isn't an octane booster, this has been made clear from the start! So could it contain a chemical that v-power doesn't or a higher amount..... that would be an aid to providing a better flame front or burn.......possibly? I think this is why their claim is basically just mid range acceleration especially under partial load. At WOT the combustion chamber should seriously be vaporising anything anyway hence why there's probably no power gain there
Yes W169 has an oil tempreature sensor, can be accessed by the service menu by having the main display set to odometer on accessories key position then pushing trip reset three times before going for ignition. Will also allow access to the literal service/maintenance logs, an option to disable ABS/ESP/CBC/TPMS all of it for rolling road testing. Sadly that's the only way to turn the ESP off on a W169 and the vehicle is then speed restricted to about 70MPH. Some other stuff there too, what engine code you have and it's ECU/Control unit firmware revisions. I heard something about Mercedes refusing to use some kind of oil sensor before, but not sure what one. Are they not funny about deadlocks too?
As for what oil additives they recommend, they don't, they will usually tell you never to use any additives unless it's for a specific climate or for a designated market where the fuel may be different, and it will be one of THEIR additives. Liqui Moly is good, but ever seen Lucas Heavy Duty Oil stabiliser? that stuff is REVERED by some people and you can watch youtube videos of actual real demonstrations on lawnmower engines etc, that stuff literally stays on stuff like slime and really minimises wear.
People are always ready to jump on the word additive because they assumed that all those thousands of hours of bench testing the manufacturer must be 100% correct in everything and nothing could improve on the consumables they tell you to use, but its not true. Especially if your engine is old, tired or dirty. My Mercedes is 11 years old, some people on here will have older ones. Oil tech has moved on in that time and there COULD be something that causes less wear, heat and friction available that would benefit and old tired motor. I used to use 0w20 in my Honda D series, an engine Honda said 20 years ago needed 5w30. Ran way, way better on the 0w20
It's a difficult one. It's like advertising that compares a product to 'other popular brands'.
Again, I don't deny the benefits of their product, but they do not specify to which type of fuel these apply.
So while I don't think they are lying as such, unless they state exactly what benefits they product will bring to cars already using premium fuels, I remain unconvinced.