# Exhaust system and Oil pressure light problems **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [March 29, 2024, 3:47pm UTC](https://community.cartalk.com/t/exhaust-system-and-oil-pressure-light-problems/194638 "2024-03-29T15:47:26Z")\ **Posts on this page:** 4\ **Page:** 2
**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\ **Post date:** [April 7, 2024, 1:16pm UTC](https://community.cartalk.com/t/exhaust-system-and-oil-pressure-light-problems/194638/21 "2024-04-07T13:16:03Z")
> [@Nevada\_545](#): > > I added 2 quarts of 0W-16 to my 2000 Dodge between oil changes, I am not concerned about the “best viscosity oil” for the engine, and I often shift at 5000 rpms 25 yr old truck=low oil viscosity=high revs. I don’t expect good results. ---
**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\ **Post date:** [April 7, 2024, 1:27pm UTC](https://community.cartalk.com/t/exhaust-system-and-oil-pressure-light-problems/194638/22 "2024-04-07T13:27:26Z")
> [@jtsanders](#): > > Those customers could insist that the dealers use 0W16 grade but they would likely have to pay more for the oil part of the change. Is 0w-16 more expensive than other full synthetic oil? My Highlander calls for 0W-20. ---
**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\ **Post date:** [April 7, 2024, 3:20pm UTC](https://community.cartalk.com/t/exhaust-system-and-oil-pressure-light-problems/194638/23 "2024-04-07T15:20:57Z")
If the dealer buys 0W20 in 55 gallon drums and dispenses directly from that barrel, it should be a lot less expensive than if they have to buy 0W16 oil in quart cans or 5 quart bottles. The 0W16 would also take up shelf space in this scenario, also adding to the cost. ---
**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\ **Post date:** [April 7, 2024, 3:37pm UTC](https://community.cartalk.com/t/exhaust-system-and-oil-pressure-light-problems/194638/24 "2024-04-07T15:37:08Z")
Maybe a shop can post bulk oil costs? [Previous page](https://community.cartalk.com/t/exhaust-system-and-oil-pressure-light-problems/194638.md?page=1)