Losi big bore shocks X6 what oil?

[trevpotter]

Hello

I'm running indoors on low grip polished floor with an X6 using big bore Losi shocks, pink rear & red front springs. Has anyone any advise as to what oil would suit? The car is not too bad but pushes wide out of corners feels loose at the back. Have tried shock positions/weights with mixed results none of which cure the problem.