Redline 10w-40 analysis, marine 351w engine

[1 FMF]

24' Formula with 1993 motor, Ford 351w HO marine, holley 4160 carb no air filter only flame arrestor, 285hp, Mercruiser Alpha 1 outdrive,
480 total engine hours, less than 50 hours on oil, boat run from early June to late November, Long Island Sound, CT. Also regularly use redline lead substitute, typical operating rpm is 2800-3100 rpm, but I ski with the boat a lot at 3500 rpm.

Dyson Analysis
Results ppm/% (blank = normal)
Wear
Copper 12
Iron 12
Chromium 2
Lead 25 rise is adds in RL up to 10
ppm, may drop with use.
Aluminum 5
Silicon 8 super low, excellent
Tin 1

Additives
Molybdenum 374 depelted due to plating up, ring wear
Sodium 226 add in redline
Magnesium 16
Zinc 784
Potassium 0
Phosphorus 760
Calcium 1850

Physical Properties
Water, fuel, antifreeze all negative
Soot 0 no insolubles, good
Oxidation 40 20% normal, some cleaning going on
Nitration 44 22% normal
Sulfur 40 fuel sulfur
TBN 6 depleted somewhat starts in 10 to 13 range, cleaning and plating
Vis@100 C 13.6 solid 40w

[ January 15, 2003, 07:20 PM: Message edited by: 1 FMF ]

 

[satterfi]

What oil has been used in the past? Was it RL before this sample?

 

[Chris]

So we don't need air filters? Does anyone know where I can get a flame arrestor for our Saturn?

Another good Redline report! Though about done with the TBN cut in half, right?

 

[1 FMF]

yeah the TBN is about half which makes sense being run in a boat. Boat was run a 140 thermostat for first half of season and a 160 thermo from september on. It is also raw water cooled. The boat also sits in the water all the time, and really only run on weekends.

I've run primarily castrol 30HD, mostly when the motor was new from '93 to '95. I usually changed oil twice a season, which was just after it started turning a dark (black) color. It's always been such that you had to stare at the dipstick to find the oil level because it was always so clear. I've put valvoline & castrol conventional oils in 30, 10w30 and 20w50 through this motor, along with slick50- can't remember if I did one or two applications of it over time. That was like in 1995-97 when I didn't know any better. I've also used RESTORE in this motor around 1998, just for the hell of it. From 1999 I started using synthetics, for the whole season. I've used castrol syntec 5w50 and 20w50 and valvoline syntec I think, and pennzoil synthetic in 5w30 I think. I know the motor doesn't like 5w30 because after cruising at 3000 rpm for a while, at a 600-800 rpm idle I have around 10psi oil pressure. With the redline 10w40 this year, after skiing I would see 20psi oi pressure at 600-800 rpm idle (which is normal) but would jump back to 40psi at 1000 rpms. I usually see 40-60psi when cold and at 2000+ rpms.

 

[JonS]

What kind of pressures were you seeing with the HD30 Castrol and Valvoline? I use straight weight 30 and my pressures are 45psi hot idle 65 WOT.

 

[dragboat]

quote:

---

Originally posted by Chris:
So we don't need air filters? Does anyone know where I can get a flame arrestor for our Saturn?

Another good Redline report! Though about done with the TBN cut in half, right?

---

KN makes a Coast Guard approved flame arrestor/filter.They even have them for blower hats. I have seen fire blown out of those arrestors before wire mesh was the design.
Still a good idea to use them with a enclosed motor and I think all the States have adapted the flame arrestor laws.

 

[1 FMF]

quote:

---

Originally posted by JonS:
What kind of pressures were you seeing with the HD30 Castrol and Valvoline? I use straight weight 30 and my pressures are 45psi hot idle 65 WOT.

---

same here.

 

[metroplex]

***

only a flame arrestor and the silicon is EIGHT PPM?!?!??!?!

So much for the K&N "allowing for higher silicon levels" eh?

 

[TooSlick]

Metroplex,

You may have noticed he is driving his boat in the middle of the Long Island Sound! Since I grew up on LI I can tell you it's about 25 miles across from LI to Conn. If you figure out a way to drive you car on top of the water, you can also do away with your air filter

How much suspended dust do you think there is 20 miles offshore anyway?

Doesn't anybody think about these things before they ask silly questions?

Ted

 

[metroplex]

quote:

---

How much suspended dust do you think there is 20 miles offshore anyway?

---

Actually, isn't SAND mainly Silicon Dioxide?
And aren't sea winds usually strong enough to throw up sand from the beaches and what not around in the air? Granted I'm not sure how much beach there is around the LI sound, but the winds could pick up the dust/dirt from whatever towns/cities nearby. Its not like beach air is so sanitary. Otherwise in the future we could just do away with clean rooms and build chips on the ocean.

[ January 18, 2003, 06:01 PM: Message edited by: metroplex ]

 

[Jay]

What is the RedLine lead substitute for?

 

[Chris]

It was a joke TooSlick. Didn't you see the

?
Relax.

 

[TooSlick]

Chris,

I am sorry about the tone of that last post ...I do get carried away sometimes. I do think on average however, there is a lot less suspended dust over a large body of water than there is on a road, particularly if you live in a farming area. Around here when they harvest the cotton fields the air is brown for several weeks ...you know that's got to be bad

TooSlick