- Joined
- Dec 12, 2024
- Messages
- 5
Thought I'd offer my experience to date with 5w-30 Restore and Protect.
A little vehicle background:
I have a 2003 Tahoe 5.3 with approx. 228k miles. It was dealer maintained, CarFax confirmed, up until 197k miles when I purchased it. I did change the valve cover gasket after purchase and the engine was very clean. I've used Valvoline high mileage early on and the previous two oil changes had switched to Pennzoil Platinum high mileage. It has the somewhat common LS piston slap that goes away after 30-60 seconds depending on the season. It hasn't changed or gotten worse since I purchased the truck. It also would consume about quart of oil about every 1300 miles.
My experience first 500 miles of R&P:
1. My oil consumption was nil. Didn't expect this since I assumed it was ring and/or cylinder wear.
2. Slight oil pressure increase. I didn't check it with my scan tool, but I've gained roughly 3 psi of oil pressure across the board according to the gauge.
3. Substantially reduced audible piston slap. I'd say roughly a 50% reduction in the time it's clearly audible.
I assumed that the last two could be related to fresh oil change, but as of 500 miles they still hold true.
Just my experience yours may vary.
_Tim
Great forum BTW.
A little vehicle background:
I have a 2003 Tahoe 5.3 with approx. 228k miles. It was dealer maintained, CarFax confirmed, up until 197k miles when I purchased it. I did change the valve cover gasket after purchase and the engine was very clean. I've used Valvoline high mileage early on and the previous two oil changes had switched to Pennzoil Platinum high mileage. It has the somewhat common LS piston slap that goes away after 30-60 seconds depending on the season. It hasn't changed or gotten worse since I purchased the truck. It also would consume about quart of oil about every 1300 miles.
My experience first 500 miles of R&P:
1. My oil consumption was nil. Didn't expect this since I assumed it was ring and/or cylinder wear.
2. Slight oil pressure increase. I didn't check it with my scan tool, but I've gained roughly 3 psi of oil pressure across the board according to the gauge.
3. Substantially reduced audible piston slap. I'd say roughly a 50% reduction in the time it's clearly audible.
I assumed that the last two could be related to fresh oil change, but as of 500 miles they still hold true.
Just my experience yours may vary.
_Tim
Great forum BTW.