Synthetic Oils

Consider your own advice...

My 7.4L foes have cold, ram air...and better than most after market kits

Plus have modified the OEM filter box for that cold, ram air system...AND...over sized OEM filter. About 2 inch larger in dis

Change that air filter often, not much restriction from debris

Via SmartPhone...excuse  the fat finger typos!

BeerCan wrote:

Turtle n Peeps wrote:

yr2017 wrote:
You can change anytime - but don't go back to dino

:R
Why? What will happen? Any links from an oil manufacture or other professional source to what will happen?

Nothing will happen except having more money in your wallet. Oil related failures when using correct spec and grade are virtually non existent, dino or syn. I know you know that but a lot of people are still blinded by the syn has to be better marketing. FWIW most syns today are hydrocracked group III mineral oils, so they are in reality dino oils anyway.

That's true of Mobil One. Not true of Valvoline and a new Castrol (not currently on the market). Read the label before you buy

BenK wrote:
...

High flow after market has larger 'holes' or 'pores' than OEM, but most of them
have a "stick'm" (oil) applied

....

The drop in ones are questionable, but replacing a restrictive flat paper filter, with a large cotton cone filter fed by cool air, increases measurable power in certain circumstances. One must do their homework, as there is no rule of thumb.

C Schomer wrote:
Some filter experts have told me that air filters are the only filters that do better as they clog. I don't know why. Personally, I only trust DP - every other method/myth is guessing. My fleetguards start with ~1.5" and end at ~ 2.5" at 11-12k miles. Craig

Simple:

A fliter has holes in it. All media type filters do. As contaminates start to close off those holes some contaminates only partially close off thoses holes.

If a 10 micron hole gets 50% clogged up then that hole will filter down to 5 micron now. If this happens to all the holes in this filter, this filter is now 50% better at filtering out smaller contaminates. This is why some manufactures of air filters say do not clean their filter too often. And this is why companies like Honda, Harley and others say to change the oil filter every other oil change.

The only problem is pressure drop............BUT:

I have personally blocked off the oil bypass on many engines. I want full filtered oil going through some of my race engines. (Some I don't) After doing this I have never seen any pressure drop in 6K oil changes on a SBC or BBC.

IMHO if you have a substantial pressure drop during normal oil change intervals wiht a blocked off bypass, you have bigger problems with your engine.

Air filters - filter better as they are used up, then there is a large pressure drop across them and a resulting performance drop. Oil filters - filter better as they are partially used, then they start to bypass (allow UNFILTERED OIL) when high oil pressure is available, like cold startup, or high rpms.

Air filters have different attributes and 'some' do 'better' as they clog, but
then they flow less or has a pressure drop across them

Velocity is way higher for air filters and several different approaches on how they do it

High flow after market has larger 'holes' or 'pores' than OEM, but most of them
have a "stick'm" (oil) applied

How those work is to force a change in direction of the 'air' so that the solids
(particles) collide with the filtering media. Where the "stick'm" then holds the
particles and is where they filter better as they clog...again...they then have
less flow and flow is the key attribute boy racers desire or are sold as the
benefit of them over OEM

Then the potential of over oiling to have oil misted into the intake
to foul the MAF/MAP and/or coat the intake run with oil. Am very versed
with them, as used to have them in all of my vehicles...till sat down
to really noodle how they work. Even had open cell foam on my side
draft Webers that you could see through...but that was when I was in
my teens and still in college...

OEM air is like oil filters and 'holes' or 'pores'. Folded to increase surface area
in the can (both air and oil).

Why on my GMT400/7.4L's OEM filter box have an over sized OEM filter. Not many
know that GM had two sizes for the OEM filter box. Buy mine from NAPA

The various OEM air filter 'gauges' measure the pressure drop on the
engine side of the filer. As it clogs, the gauge will move. I don't trust them and just change them every other year and more often if
driven in dusty/dirty conditions.

Some filter experts have told me that air filters are the only filters that do better as they clog. I don't know why. Personally, I only trust DP - every other method/myth is guessing. My fleetguards start with ~1.5" and end at ~ 2.5" at 11-12k miles. Craig

Hannibal wins lol.

Cummins recognizes Valvoline as a preferred supplier for our engines with our partnership ensuring continued technology leadership and the ultimate product experience for our customers. Valvoline’s Premium Blue diesel engine oil is the only engine oil recommended by Cummins and is the factory fill lubricant used at all Cummins engine manufacturing facilities


http://www.westerncanada.cummins.com/parts-services/valvoline.html

Cummins12V98 wrote:
Hannibal,

"Never heard of it. However,"

Well now you have.

Yeah but I "heard" of it from you.

Then I went and read about it from the source. Cummins engines come factory filled with Valvoline Premium Blue as they have for at least two decades.

If not, simply provide a link to a factual source to back up your claim. Otherwise, you're just spreading erroneous information.:p

I've heard dino oil should be used in the first 10000 miles because it is not as slippery as syn oil, so the cross hatch on the cylinder walls gets a nice wear down/polishing with dino oil. Then can syn be used. But that goes back 15 years, and seeing that engines come out of the factory with syn oil (Mercedes Benz engines that propell the ever so familiar school buses go 35 thousand miles before the first oil change!), it's probably less important today. Second point, ideally, the oil filter should be replaced halfway through the planned oil change interval.