Mopar Muscle Association UK

It seems the only engine oil we should be using in our flat tappet cam engines (without the need for an additive) , is any oil branded "for off road use only".

The only oil I've heard that still uses sufficient zinc in there motor oils is Valvoline "racing" oil , branded "off road use only".

Anybody know of another oil to use , as all the diesel oils , including Rotella (unless you get an old batch) , are now not using zinc additives.

Sorry to start another thread , but my first one is now useless.

Does this mean were all gonna be off the road soon fitting replacement cams?

Like I said. I don't see any problem with sticking to the Magnatec. It coats the metal so you don't get the start up wear.

It's one way to get old cars off the road(which the authorities would love to do) What do we know about Castrol? I used to run my old 6 pot Mustang on R30 all the time. http://www.castrol.com/castrol/sectiong ... Id=7027099

Dave wrote:Like I said. I don't see any problem with sticking to the Magnatec. It coats the metal so you don't get the start up wear.

The problem is "metal to metal" wear , without the zinc additive , oil alone is not enough.

You gotta say to yourself , "why did they add the zinc to start with".

Am I right in thinking these Diesel oils (of which Ihave about 500 gallons at work) is just for break in? You can get Magnatec Diesel now as well!

There using diesel oil to run there motors , not only for break in , as the petrol oils are not good in a flat tappet cam engine.

Cam manafactures are having a nightmare , their doorstep is full of wiped cams.

Read through this; http://www.dodgecharger.com/forum/index ... 461.0.html

latil wrote:Read through this; http://www.dodgecharger.com/forum/index ... 461.0.html

Interesting read Steve. I have also been talking to Castrol about their oil products and recommendations.
Will post some more ( helpful info ) I hope, later when I here back.
Rich.

Adam68 wrote:

Dave wrote:Like I said. I don't see any problem with sticking to the Magnatec. It coats the metal so you don't get the start up wear.

The problem is "metal to metal" wear , without the zinc additive , oil alone is not enough.

You gotta say to yourself , "why did they add the zinc to start with".

Is it me not being clear enough?

Magnatec has additives that prevent metal to metal wear. Which is how I was able to run the length of the strip and return to the pits with zero oil pressure and without the slightest bit of damage to the bearings.

The problem is Castrol will not say what their additive is.

I've been aware of this problem for some time and have been using Halfords 20W-50 Classic Car Oil. There's no API rating on the tin, it just says it's suitable for classic cars from the 60's, 70's and 80's and is formulated in the style of the original oil to preserve and protect classic engines.
I used to use Magnatec until I read an article quoting a scientist who said it was impossible for oil to be magnetic. He did explain why but I can't remember.

Ok Dave , I'll go with magnatec , hope i won't be knockin on yer door with me cam in one hand & a bill in the other.

So whats the ingreidient in magnetec , or have they also taken something out the oil.

Also. I have come to find out that most of the cam wear issure are not on cars that do a lot of miles but the cars that do few miles but are started up a lot.

So clearly it is cold starting after standing that is doing the damage. Which makes sense. Until oil reaches 180 degrees the wear is teriffic.

Magnatec clings to the surface of parts. It feels a little sticky on things like the cam lobes even after standing for a long time. It is designed specifically for protection during cold starts.

Mick70RR wrote:I used to use Magnatec until I read an article quoting a scientist who said it was impossible for oil to be magnetic. He did explain why but I can't remember.

It is not magnetic and they don't claim it is. It is their baby talk (always stated in inverted commas) for a surface molecular interaction.

ive always used kendall thats good stuff aint it???

Yes Dave, Magnatec has got intelligent molecules that seek out and stick to metal.