# calling all LS1 owners... **URL:** \ **Category:** Shift518 Automotive\ **Created:** [June 14, 2009, 4:13pm UTC](https://forums.speedlife.net/t/calling-all-ls1-owners/244753 "2009-06-14T16:13:16Z")\ **Posts on this page:** 1\ **Showing post:** 23
**Author:** ![Shady](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@Shady](https://forums.speedlife.net/u/Shady)\ **Post date:** [June 15, 2009, 7:22am UTC](https://forums.speedlife.net/t/calling-all-ls1-owners/244753/23 "2009-06-15T07:22:31Z")
> [@Bottom of the box cereal](https://forums.speedlife.net/t/bottom-of-the-box-cereal/19362/22): > > Troubleshoot it starting with the cheapest “fix” first. > > I would change the oil you use first. Get away from Mobil 1 and use a heavier weight. You don’t drive it in the winter or below 32 degrees so you could def, get away with a 20-50. 10-30 is even better than what your using now. That should help, if not, catch can. 5w30 seems way to light for a big motor in summer temps… My car used to burn 5w30 bad… supringly enough 5w40 seems to run very good in my car… --- _[View the full topic](https://forums.speedlife.net/t/calling-all-ls1-owners/244753)._