CAS Simplify(log10) always changes to LN

[scropsey]

Is there a way to have the CAS simplify result in the base that is used?

Every expression I have tried changes the base to LN.

Example: simplify ( log10(2) + log10(6) ) results in (LN(2) + LN(6))/(LN(2) + LN(5))

I am looking to use it as a way to introduce/reinforce the properties of logs.