Aggressive DFCO settings

[Manuel]

Merry Christmas and happy new year to every one.

Will I harm my engine by having DFCO set this aggressive?

Thanks

20583

[Highlander]

There is no heat being produced with DFCO. I don't see the harm in it. You will probably over oxygenate your cats but that shouldn't be a problem either.

[Manuel]

Thanks for that. I'll let you know how I go.

[Manuel]

I finally got around to trying these settings.
Didn't really help with fuel economy, it actually made it worse.
Car felt less torquey off idle.
I reverted back to stock settings.