What do you use for valve caps ?

I think not ! I do not see how never seize could migrate to the sensor! ( at least the electronic part of the sensor just think about it logicly the never seize is very isolated fr the electronic part is on the threads on the outside of the valve stem and the inside of the valve cap I suppose it could come in contact w/ whatever physically constitutes the pressure sender but not the electronics portion ! and then there is this factoid ! ( as per the Rennslist forum the Porsche guys ) - " Anti-seize is generally a poor conductor of electricity as the metal content is relatively low thus the effective contact area is minimal. Electrically conductive grease ( dialectric grease ! )might be a better choice?" ..........................and

"you shouldn't use the electrical grease as a anti seize thread lube. its just for electrical connections. ".......................................................................................now some types of never seize would allow/ facilitate current flow - some won't
Permatex® Copper Anti-Seize Lubricant



Category: Specialty Lubricants - Anti-Seize
A premium quality copper anti-seize and thread lubricant that may be used to prevent seizing, corrosion and galling where high temperature conditions exist. Contains a high percentage of micro-fine copper flakes in a semi-synthetic grease carrier and is fortified with high quality rust and corrosion inhibitors. Temperature range: -30°F to 1800°F (-34°C to 982°C). Provides good electrical conductivity. -
Suggested Applications: Spark plug threads installed in aluminum, exhaust manifold bolts, engine bolts, oxygen sensors, knock sensors, thermostat housing bolts, and fuel filter fittings. Indeed this is the type we use on spark plugs ! so sorry, you've got it kind of backward at least w/ some types of never seize do not conduct well ! then there is this fr an electrical engineer ! :
One incorrect logic is the "dielectric" in "dielectric grease" means the grease should only be used to insulate. All greases work by the low viscosity allowing the grease to completely push out of areas with metal-to-metal contact. Dielectric grease is just better at holding off high voltages over long paths.

Conductive Grease
Conductive greases and anti-seize compounds have a suspended base metal powder. The suspended metal powder is a fraction of the area occupied by insulating grease, and so the grease still insulates the connection. The grease does not conduct.

The working theory of "conductive" grease is when pressure is applied, the grease squeezes out of the way. This leaves a fine metal powder that theoretically pierces oxides or fills voids. Using aluminum and copper blocks with various surface conditions, I've never been able to actually verify connection improvement from specialized conductive greases. In my tests, it appeared the grease simply carried most of the suspended powder away. Any remaining powder has never been enough to reliably reduce voltage drop across clamped connections. The change in voltage drop has always been indefinable, even with careful repeats of clamping pressure. I'd appreciate anyone having useful data sending me a copy.

The suspended powder creates a problem that does not exist with dielectric grease. The suspended metal must be fully compatible with the metals being clamped. This means conductive grease is application specific. If the metals being clamped are incompatible with the grease's suspended metal powder, the connection will eventually fail. This is what happened in our CATV system connectors. The connections were a mix of copper, aluminum, and steel. The cable shields were aluminum, the trunk center conductors cables were copper clad aluminum. Drop cables were aluminum shields and connectors, with copper clad steel centers. Our records showed a much higher incidence of corrosion failure using conductive grease. Corrosion failure rate dropped significantly, almost to zero, when we switched to pure dielectric grease.

In bolted or clamped connections, I have no opinion if conductive greases help or are necessary. I feel like they help, but I'm not sure if that is true. I use Noalox on clamped aluminum slip joints in antennas because it is generally less expensive than silicone dielectric greases and it appears to last longer. I NEVER use conductive greases on push fit electrical connectors, or if I am unsure of metal to grease compatibility.

Conductive greases should specifically match materials being clamped. Conductive greases should never be used in low pressure electrical connectors, or in connectors with multiple terminals. Conductive greases should only be used in connections that are well-isolated from connections with differing voltages, and never in high voltage connections. They never belong in RF or signal connectors, unless they are bolted connections and the material compatible grease does not bridge insulation..................................................................................................................... Never seize ! .we are using such a slight amount mere whisp really! it is not gloped on ! ( doesn't take much to prevent galling and dissimilar metal corrosion ) our use of never seize it has never been an issue in many years ! 50 + ! mayhaps the difference betwixt theory and reality is evident here !

 

noted and since never seize is specifically designed to prevent thread galling, dissimilar metal corrosion, etc. we see no reason it cannot be used and would be preferred ( and is ) by mechanics! I was discussing this topic at a car show w/ several techs and we were genuinely bemused that anyone would diss the widespread use of it !

 

indeed saw those somewhere very clever cover up the whole stem they do ! as i recall they were pricy ! ( ferrari tax ) !!

 

i see why they are analagous to a wet T -shirt contest ! LOL mechanical art imitating life !

 

nice mine are red hence the red caps ! ( red car too LOL )

 

Boy you'd really hate this car then ! for sale on e bay ! ( not mine ) Not my cup of tea but well done i'd say ! as for the valve caps? I hardly think they are "ostentatious add-ons " do we hear a purist talking ? seems to me they are a small appropriate functional part that in fact matches, goes w/ the wheel center caps ! .................................................. Image Unavailable, Please Login

 

thx yes it is hardly difficult to calculate the appropriate torque reduction whilst using never seize! there are a plethora of sound advice engineering based sources ( as above that clearly delineate what should be done and how ) I was chatting w/ some fellow techs and we were quite bemused by all the naysayers to using never seize! we have done it our entire professional life w/ Zero issues !