Originally Posted By: Oil Changer
It's the finality of it all. You can not undo what has already been done.
Maybe--but you could always just change it with something close to the original FF, and get the best of both worlds. I don't think the FF is available in the US, but you could use a high-moly 0W20 and it would be "close enough", at least in my book. If you can find Toyota 0W20 SM or Honda's Idemitsu SM 0W20, just toss that in and run it until the original MM goes off.
All that said, if you're really itching to do something, why obsess over the engine? It's transmission deaths which are more likely to put a car in the boneyard a couple of decades down the line--not the engine. Since there's a good bit of evidence that most of the wear contaminants in a transmission show up after the first 5K miles, what about leaving the FF in the engine along until 50 or 75% of the MM, and doing a transmission flush. There are no special factory fill additives in the transmission FF (at least of which I'm aware). Honestly, I'd probably be more inclined to dump the transmission and rear differential fluid than the engine oil if it were my car.
It's the finality of it all. You can not undo what has already been done.
Maybe--but you could always just change it with something close to the original FF, and get the best of both worlds. I don't think the FF is available in the US, but you could use a high-moly 0W20 and it would be "close enough", at least in my book. If you can find Toyota 0W20 SM or Honda's Idemitsu SM 0W20, just toss that in and run it until the original MM goes off.
All that said, if you're really itching to do something, why obsess over the engine? It's transmission deaths which are more likely to put a car in the boneyard a couple of decades down the line--not the engine. Since there's a good bit of evidence that most of the wear contaminants in a transmission show up after the first 5K miles, what about leaving the FF in the engine along until 50 or 75% of the MM, and doing a transmission flush. There are no special factory fill additives in the transmission FF (at least of which I'm aware). Honestly, I'd probably be more inclined to dump the transmission and rear differential fluid than the engine oil if it were my car.