The castrol is suppose to be fully or half sintheic (sp) it is the purple stuff any buddy ever use it? ------------------ 86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.

Don't know about the rubber, but urethane doesn't like hydrocarbon-based grease, regardless of whether its natural or synthetic.

What is hydro carbon greas?

Petroleum-based.

Argh, and I was planning on using my regular chassis lube (Valvoline Synpower, 100% synthetic) on the sway bar bushings I'm doing this weekend! Why doesn't polyurethane like synthetic (or dinosaur) grease? I thought the poly was impervious to everything... road salt, trans fluid, tar, other car fluids, etc? Why is grease different than oil? I really don't want to buy another air-powered grease gun just to hold silicone grease...


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

Back to the top... anyone know why?


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

Who knows, maybe its BS, but all I've ever heard is if you use anything other than silicone on poly bushings, it'll eat them.

energy suspension recommends the following grease for their poly bushings: Sta-Lube Multi-Purpose Marine Grease. SL3120 is the p/n for the regular grease gun tube. hope this helps

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85 Z28- 350, Comp 262, Edelbrock Performer intake, Edelbrock 600 cfm carb and Edelbrock cat back, Summit headers and vette servo
-JVC, Eclipse, Pioneer, MTX, Phoenix Gold, Planet Audio

I see Pep Boys carries a 3-pak of "mini" grease cartridges called "Marine Grease".. I wonder if it's the same stuff. The back of the package said it was colored blue, and didn't mention anything about a silicone base. I'd still rather use synthetic grease, though...

Does ES just recommend the marine grease (silicone) because it's less likely to wash away? Maybe it's not an issue with greasable bushings, but for the normal bushings, it is?

I remember when I put on my Energy Suspension torque arm bushing; that little packet of grease was annoying- I couldn't get the stuff off my hands. At last check, the bushing's still greasy; synthetic probably would've washed away by now. So.... does that make that theory of "silicone's less likely to wash away" sound good? See what I mean?

The greasable rear bushings (by ES) that I just bought have an instruction sheet; they don't mention anything about the type of grease to use. The sheet basically says to pre-pack the grease channels (in the poly bushing) with grease, and then to grease the bushing via the zerk fitting after installation. It doesn't say anything about which grease to use.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

[This message has been edited by TomP (edited August 05, 2001).]

back to top...


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

Steve Spohhn has the grease you need in the big cartridge. I just received my order the other day. Here is the info from his web site:
Polyurethane Bushing & Chassis Grease

Price:$14.00
Item #902

This is the good stuff!

Polyurethane bushing manufacturers advise to never use a petroleum based grease for poly bushing lubrication. Polyurethane should only be lubricated with one specific type of grease to insure a long bushing life, and squeak-free performance. Silicone based synthetic water-proof grease, the white sticky stuff!

We've found this grease to be so good, we use it for the entire chassis lubrication on the cars we build and race out of our shop. It stays where you put it, it doesn't wash away.

Don't pay the other guys $9.95 for a little foil pack of this stuff. It's a low volume use grease, and thus most local stores do not carry it. We special order it in large quantities, and can pass the savings on to you, our customers.

From Spohn Performance you get a full-size grease gun cartridge of the good stuff for $14.00.

Get 'em sticky!



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1990 RS Camaro 305 TBI
700R4 Tranny
3" cat back system with flowmaster mufler
Edelbrock strut brace tower and rear panhard bar
Spohn subframe conectors and lower control arms
all polyurithene bushing under the car
March underdrive pully
K&N filter
Hypertech chip
Aluminum driveshaft
3.42 posi rearend
Killer sound system
Many new mods to come

Yeah, but like I said, I really don't want to pick up another pneumatic grease gun (don't want to go back to a manual-op one) just to hold a silicone grease cartridge.. I guess I'll run with my normal Valvoline synthetic, and if the bushing starts to erode, I'll move to the silicone grease. If I'm going to be greasing these bushings regularly, it doesn't matter to me if the grease washes away..! I don't see it washing away, anyway; the bushing seals pretty tightly against the stabilizer bar.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

CAn the sillicon stuff be used on rubber bushings? This is what energy suspension said,Yes, You'll need a teflon base grease. Or any waterproof grease will do.
performanse suspension had this to say,> Thanks for taking the time to check out our website. In regards to your
> e-mail you can use any kind of grease or a Teflon based grease. If you
have
> any questions please let us know. Not sure about the rubber bushings.
>
> Thanks
>
> Sonny
spohn had this to sayUse synthetic silicone grease (marine grease) only on poly, and it
works great on rubber as well.


We sell it on our website.

Thanks, BlackZ, for digging that info up! I feel better about using the synthetic now. I suppose eventually, when I rebuild my front suspension with poly, I'll load my gun with the silicone- but I'm not near that step yet.

Thanks again!


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

When I say bushings you guys know I mean the tie rod ends ball joints and rear lower control arms and things like that.

btt

so what's the verdict is marine grease ok for poly?

Just go with the Energy Suspension grease. This is what I used when installing mine. Comes in a little container or depending on what size you order, and just applies with your finger. This stuff is awsome, real sticky and doesn't wash away, will stay put for a long time. Also contains teflon to help keep them from sqeeking. Better to go with a good grease such as the ES stuff so that you don't have to service the sqeeking bushings as much. Especially when it comes to the front control arms, because the only way to service them is to remove them and everyone knows what a bi*ch that is.

What I meant meant buy grease is the kind you use at every oil change on the grease fittings, not when you first install the bushings.

so if i use marine grease on my poly sway bar bushings, i cant use it on anything else? ball joints and the like...

I figure when I move over to a full poly front end, I'll buy another grease gun to hold the marine grease. But for now, with the only poly bushings on my car being the end links and the sway bar mounts, I'll stick with the synthetic gun.