Yes, use Loc-Tite. No problems with it in aluminum (use the correct grade for the application).
If I remember correctly, the instructions that came with my kit said to use Loc-Tite on about everything.
6 lb-ft is good for SAE low-carbon 1/4" - 20 tpi bolts.
10 lb-ft for Grade 5
14 lb-ft for Grade 8
(For fine thread bolts, you can increase the number by 9%)