pennzoil ULTRA PLATINUM 5W-30 OIL

[Napalm]

Yes without the big noise blocker - you'd be amazed at how loud fuel injectors are under load.

[MongosG8]

Yes without the big noise blocker - you'd be amazed at how loud fuel injectors are under load.

So true .. I even had a friend notice a big difference when I pulled it off

[Chewy]

I hear nothing under "full load" from the front of my car!

From what Manton is saying about their trunnion bushings, I should hear even less from upfront.

[MongosG8]

I hear nothing under "full load" from the front of my car!

[Napalm]

just an FYI

Got 5qt jugs of the ultra platinum from wallmart.com for 25 per jug. Cheaper than the lower grades sitting on the shelf in the store.

AND buying 2 of them I got free shipping to the house. NUTS I tell you.

[Chewy]

Just can't buy from Wally World. Just can't do it... I still have this sitting in my garage. My plan is to finally use it this year. I put 100 miles on last year.

[Jeff92se]

Respectfully,

a) "any oil" can go to 10,000 mile interval. The core question is the level of protection you want for your engine at that interval.
c) a 9 quart sump is not a significant determinant of the level of protection you want for your engine.
d) The level of protection comes from the quality of the base oil and the additive packs therein. (dispersents, detergents, antioxidants, friction modifiers, anti shearing, etc.)
e) At some point all additive packs will diminish (via volatility, oxidation, mechanical shearing, combustion contaminants, etc.) .... that's when you see gunk, soot, and all that stuff!)
f) You are correct that you can take our 9 quart cars to a 10,000 oil change interval - but we would do so at a cost/benefit compromise. (i.e., the reduced cost of oil changes vs. the high cost of a reduced mileage engine and subsequent R&R. The dealer replacement cost of an L76 (with labor) is $9,000. Not suggesting that 10k oil intervals lead to engine replacment (cause & effect) ..... only that we have a lot of cash invested in our cars and thus the need protect drive trains with quality lubricants.

While I'll agree in general, I contend.

Same oils but different quanties:

1) Car with a 4-5 quart sump. Probably not recommended to go 10,000 miles unless you run a solid synthetic with quality base stocks. 5,000 is probably the max.
2) Car with 9-10 quart sump. Probably no problem to go 10,000. Why? Because there is 2x the additives etc.. available for the engine to consume. More oil means the degradation of all the additives that 10quarts of oil will be used up slower.

[MongosG8]

just an FYI

Got 5qt jugs of the ultra platinum from wallmart.com for 25 per jug. Cheaper than the lower grades sitting on the shelf in the store.

AND buying 2 of them I got free shipping to the house. NUTS I tell you.

I never shop at that store but I seen the same deal.. looks like I will need to enter at my own risk and purchase a couple of the 5 quart containers.

[tchr49]

I never shop at that store but I seen the same deal.. looks like I will need to enter at my own risk and purchase a couple of the 5 quart containers.

You can always people watch

[Chewy]

You can always people watch

Ew! I'd rather do that at Target! A much better-looking mix of people.