yeah but that's the gamble. i'd rather have to replace a $1500 tranny, than buy a used/reworked $3000+ engine.

 

I'm still unsure how this is an "experiment"?

Do you mean to tell me that the honda engineers who built the car don't know what they're talking about?

 

Again you are assuming the engine will be the first thing to go if you don't use synthetic. That may or may not be true. And a used accord engine should be well < $1000.

But I don't think I'd spend $1,500 fixing a $3,000 car in the example I gave. I'd part it out/junk it and move on.

 

I trust the engineers and follow their recommendations.

But you would need to experiment if you want to gauge the validity of their recommendations.

 

Original poster's car is MY05 with 5k miles, he likes to change his factory filled oil with Mobil1, which is not what Honda recommended. If anything went wrong, Honda may deny warranty for using non-recommended oil for the first 10k miles, who will pay for the repair ? If he uses conventional oil and his engine brake down, who will pay for the repair ?

Why take chance with warranty coverage from using non-recommended oil for the first 10k miles ?

My other car E430 had synthetic oil in the crankcase from day 1, and I kept using synthetic oil every oil change. I just use the recommended oil to make sure I will not be denied warranty services if I ever need it.

 

I hear that the '04 and '05's are somewhat different regarding oil burning, but this was issued for the older models: (click on it twice to get to the largest and most readable copy):



JonasM

 

there at the bottom. straight from honda.

"do not use synthetic oil in the S2000 for the first 7500 miles"

 

[QUOTE=Wisconsin S2k,May 25 2005, 12:56 PM] This is a well known fact by those with the technical knowledge of the workings of the engine, and even for those who've read enough on these forums.

If you want your proof, as I said, there was a TSB for the previous gen prelude, that stated, do not use synthetic before 7500-10k due to the fact that it can cause improper breakin/wear on the FRM cylinder walls.

so this doesn't mean that you'll blow up your engine.

 

Darn! Should have read the posts before posting! LOL!

Ok, ok...you got me. But it is NOT in the manual.

 

So what is so special about the Honda cylinder walls as opposed to Porsche, Corevtte, MINI, or many other cars that come with synthetic from the factory?