I'd say that with a small capacity size in that car I'd not go more than 6k miles whether it was Pennzoil Gold, Castrol Magnatec, and or Supertech 5w30.
My car has a 4 qts 28/32 of a qt capacity. It has the 3.5 VQ motor which has a little bit of kick to it. I got the car with only 39k miles on it in Nov 2012. It has almost 219k miles now. A very good car overall. I have run all kinds of different oil in it. Castrol Magnatec 5w30, Castrol Ultraclean, Castrol gold bottle, Havoline Pro DS, Havoline DS, Motorcraft, Super S, Mobil Super Synthetic, Mobil Super, Pennzoil Ultra Platinum, Pennzoil Ultra, Pennzoil Gold, Valvoline Maxlife Full Synthetic, Valvoline white bottle, Formula Shell, Rotella T5. Out of all of them the ones I think we're the best in that motor was #1 Castrol gold bottle, #2 Pennzoil Ultra, #3 Havoline Pro DS, #4 Valvoline Maxlife Full Synthetic, #5 Valvoline white bottle, #6 Mobil Super Synthetic, #7 Mobil Super and #8 Smitty's Super S.
A couple of those I can no longer find... Pennzoil Ultra and Havoline Pro DS.
My car has a 4 qts 28/32 of a qt capacity. It has the 3.5 VQ motor which has a little bit of kick to it. I got the car with only 39k miles on it in Nov 2012. It has almost 219k miles now. A very good car overall. I have run all kinds of different oil in it. Castrol Magnatec 5w30, Castrol Ultraclean, Castrol gold bottle, Havoline Pro DS, Havoline DS, Motorcraft, Super S, Mobil Super Synthetic, Mobil Super, Pennzoil Ultra Platinum, Pennzoil Ultra, Pennzoil Gold, Valvoline Maxlife Full Synthetic, Valvoline white bottle, Formula Shell, Rotella T5. Out of all of them the ones I think we're the best in that motor was #1 Castrol gold bottle, #2 Pennzoil Ultra, #3 Havoline Pro DS, #4 Valvoline Maxlife Full Synthetic, #5 Valvoline white bottle, #6 Mobil Super Synthetic, #7 Mobil Super and #8 Smitty's Super S.
A couple of those I can no longer find... Pennzoil Ultra and Havoline Pro DS.