94 Civic: coolant drain/flush and thermostat

Right.

 

That's the discussion I was referring to. Don't recall what the additive
was.

 

That's kinda funny: it *will* be due in 2 years... ;-)

It does make it a slightly long-range planning test, doesn't it? Well, I
suppose the reality is that you've been using ordinary 10W-30 for the
last 10 years or more, and haven't had any noticeable problems. Maybe
you'll try the Honda stuff next go and discover that it feels the same.

I'm gonna give the Honda MTL stuff a shot my first time with this car.

 

I meant it is also due every 30k miles. I could hit 30k more miles in 1.5
years, say, but I likely won't.

I'd be interested in whether you notice a difference; and the cost of the
Honda MTL stuff.

Google reports say people do notice a difference, namely, better shifting.

 

Ahh. I would have thought that it would be more a function of time,
insofar as corrosion is concerned, but if the proper fluid is supposed
to be non-corrosive and doesn't degrade as much given that the engine
isn't hot for 30,000 miles, maybe not.

My shifting feels perfectly smooth now, but I don't know what's in there
now. Could be Honda MTL for all I know. I'll try to remember to post
back. Have to do the coolant soon at the very least.

 

I started using MTL at about ten years of age (the car, I mean). I did not
notice any real difference in shifting. Canadian 10W-30 at that time may
have contained more zinc than US 10W-30, so there may have been less
difference than there would be now.

I still use Honda MTL though, and change it every year.