Ultimate Motor Oil Thread or Why we hate CJ4/SM oils

[HarryD]

Originally Posted by tomeric914

Not quite. My point was if ZDDP is the concern, and HD oils meet the 1,200 ppm Zn requirement, then why are many gaga over Brad Penn?

+1 to the comment by SilberUrS6.

The reason some of like to use Brad Penn is that it is the same oil that, long ago, was sold as Kendall GT. When Conoco bought them out, they changed the formulation of Kendall.

Kendall GT has long been considered one of the best oils you could buy regardless of price. Brad Penn continues this tradition.

[tomeric914]

Originally Posted by HarryD

Kendall GT has long been considered one of the best oils you could buy regardless of price. Brad Penn continues this tradition.

Fair enough. Thanks and happy new year!

[ganun]

Originally Posted by Iciclehead

Guys, in addition to the conversation, here is some info:

Zinc Level of Mobil 1 15W-50 Synthetic Motor Oil

Synthetic Oil | Additive for Flat Tappet Cams

Dennis

No Issues with M-1
Here is a pic of the cam of my daily d at just 275,000 miles with a steady diet of Mobil 1 15w-50. Its a 2.2 sohc 4 with 13lbs boost. I currently have Castrol Syntec 5w-50 (for classic cars) but will go with M-1 15w-50 just because.
But OTOH I think its more important to change it often than whether one brand or the other.

[ganun]

Sorry the cam pic did not come out as intended....will have to wait till its out of the head.

[Reiver]

Originally Posted by HarryD

+1 to the comment by SilberUrS6.

The reason some of like to use Brad Penn is that it is the same oil that, long ago, was sold as Kendall GT. When Conoco bought them out, they changed the formulation of Kendall.

Kendall GT has long been considered one of the best oils you could buy regardless of price. Brad Penn continues this tradition.

I use it not only for the zinc etc. but for its shear strength...it is/has twice or more the shear strength of other popular oils and that comes in handy at our Az 110-115 degree summer days.
I tried other oils (V1 racing etc.) but they quickly degraded in the heat (oil pressure drop/change after 50 or so miles) whereas BP maintains a constant pressure rate from fill to oil change.
I run about 190-195 temp. in that heat and 1 bar at idle.

[Dan J]

Originally Posted by GaryR

I believe this was caused by using oils with low ZDDP -

I don't know Gary I used to see that in the early 80's when all oils used
lots of zinc. The oil we used at the dealer (and drained out of said motors)
was the Miraculous Kendall

[GaryR]

Originally Posted by Dan J

I don't know Gary I used to see that in the early 80's when all oils used
lots of zinc. The oil we used at the dealer (and drained out of said motors)
was the Miraculous Kendall

Maybe just luck of the draw then Dan? She's being reground either way..

[SRT356/911]

I am going to stick with SWEPCO. It has the prerequisite additives to keep the flat tappets from damage and it can be had at a great price. Esp if you get a group together and come up with $500 worth in cases. Shipping is free at that level of purchase.

[db_cooper]

Originally Posted by Dan J

I don't know Gary I used to see that in the early 80's when all oils used
lots of zinc. The oil we used at the dealer (and drained out of said motors)
was the Miraculous Kendall

Hard to tell..the top camshaft has the wear on one lobe (on the toe)..the other lobe next to it has a nice dark area where the lifter (on the heel/ramp) had oil clearance and left a good dark oil stain from the appropriate gap between the lifter and camshaft, like they should.

The bottom camshaft looks like it had no clearance on the toe or heel on both intake and exhaust lobes..there is no dark stain on what looks to be the heel/ramp of the lobe adjoining the worn toe next to it. Looks polished all the way around..no dark oil stain.

Again..hard to tell without the parts in my hand...my guess...no clearance on the lifter/camshaft on certain valves..some valves were too tight..like zero clearance..therefor wiping the lubricating oil from the camshaft, like on the picture of the bottom camshaft lobes/ramps.

Without the .004 valve clearance on all the valves the oil was wiped off the camshaft ramps and wore the hardening off the camshafts..and lifters too.

I don't think the camshafts have a zinc problem.The lack of uniformity in the camshaft hardening failure between each set of lobes.I think, most likely (A) the camshafts have a very infrequent valve maintenance problem or (B) heavy duty "racing" valve springs with high valve seat pressures or incorrectly installed stock valve springs with incorrect spring service height with the high valve seat pressures (pounding the valves into the seats and closing up the valve clearances).. or (C) a service tech competency problem or (D) plugged oil camshaft squirter tubes.

[GaryR]

Stock motor, never opened or modified, can't speak to valve adjustments...

[J-Mac]

Originally Posted by SRT356/911

I am going to stick with SWEPCO. It has the prerequisite additives to keep the flat tappets from damage and it can be had at a great price. Esp if you get a group together and come up with $500 worth in cases. Shipping is free at that level of purchase.

I wasn't able to find this information for SWEPCO. Can you share your source please. Thanks much.

[db_cooper]

Originally Posted by GaryR

Stock motor, never opened or modified, can't speak to valve adjustments...

Due to the lack of uniformity in the lobe failure(s), most probable A very tight valves in the service history, maybe C or not so likely D

What engine? 3.2?

If all the worn lobes are at cylinders #3 and #6, then maybe an oil pressure problem in the past too.. Those rockers are at the end of the oil squirter tube(s) and suffer damage first when things go wrong, but both camshaft ramps/lobes would be worn..not just one lobe like the camshaft at the top in the picture. Cant tell from the picture which end of the cams we have.

[SRT356/911]

Originally Posted by J-Mac

I wasn't able to find this information for SWEPCO. Can you share your source please. Thanks much.

This is a link to their website: Southwestern Petroleum Corporation - SWEPCO If you order on line, your first case is shipped free. Successive cases will be charged shipping if the order doesn't total $500. If you order 10 cases you get a case free as well as free shipping.

I live in the SF Bay area and Max is the local distributor. He delivers it free all over the Bay area if you buy the $500. He can be reached at 415-990-6418.

Or you can call the company and they will put you in touch with the local distributor.

[J-Mac]

Originally Posted by SRT356/911

This is a link to their website: Southwestern Petroleum Corporation - SWEPCO If you order on line, your first case is shipped free. Successive cases will be charged shipping if the order doesn't total $500. If you order 10 cases you get a case free as well as free shipping.

I live in the SF Bay area and Max is the local distributor. He delivers it free all over the Bay area if you buy the $500. He can be reached at 415-990-6418.

Or you can call the company and they will put you in touch with the local distributor.

Thanks for the information. Yes I have been to their site in the past and can't find anything there specifically mentioning zddp. I was hoping you had more than is published there. It's top of mind at the moment because I had an oil change recently and my guy put in Swepco 306. If it doesn't have the right additives I want to get it out of my car sooner rather than later.

Has anyone information on Swepco 306 regarding their additive package? Our host sells it I just noticed. Thanks all.

[SRT356/911]

As I recall it is listed in this forum. You can call or write directly to the company or call Max and he will get it to you.

JWE Jerry Woods uses it exclusively in their engines. JWE sells it as well. Bruce Anderson & Jerry Woods' Engine Overhaul Class...

[J-Mac]

Originally Posted by SRT356/911

As I recall it is listed in this forum. You can call or write directly to the company or call Max and he will get it to you.

JWE Jerry Woods uses it exclusively in their engines. JWE sells it as well. Bruce Anderson & Jerry Woods' Engine Overhaul Class...

Thank you. I'll give Max a call.

[Dan J]

Originally Posted by GaryR

Maybe just luck of the draw then Dan? She's being reground either way..

I've seen that type of wear on many 911 cams over the years and have never
heard a good explanation. It's always been on stock unopened motors with stock
Porsche cams. Maybe a manufacturing issue? I've never seen that particular wear on any other brand of cam ( GM, MB, Cat, Cummins, Deutz, Isky, Elgin, etc,etc)

[Jerome74911S]

Originally Posted by Dan J

I've seen that type of wear on many 911 cams over the years and have never
heard a good explanation. It's always been on stock unopened motors with stock
Porsche cams. Maybe a manufacturing issue? I've never seen that particular wear on any other brand of cam ( GM, MB, Cat, Cummins, Deutz, Isky, Elgin, etc,etc)

That's rather alarming. It sounds as if it would be difficult to blame the oil if you have seen this numerous times over many years. Did Porsche make its own cams, or were they made by an OEM?

[GaryR]

Originally Posted by Jerome74911S

That's rather alarming. It sounds as if it would be difficult to blame the oil if you have seen this numerous times over many years. Did Porsche make its own cams, or were they made by an OEM?

Over the years I have learned one thing... regarding Porsche motors what Dan says is gospel. He tells a good dirty joke too!

[db_cooper]

Originally Posted by Jerome74911S

That's rather alarming. It sounds as if it would be difficult to blame the oil if you have seen this numerous times over many years. Did Porsche make its own cams, or were they made by an OEM?

Porsche makes their own camshafts..I don't think it is a flaw in production or a "zinc" problem..I think the valve(s) ran too tight due to neglected engine maintenance or poor technician skills.