- #PENNZOIL SYNCHROMESH TRANSMISSION FLUID MANUALS#
- #PENNZOIL SYNCHROMESH TRANSMISSION FLUID MANUAL#
- #PENNZOIL SYNCHROMESH TRANSMISSION FLUID FULL#
Use Long Life Delo Syn-Trans Fluid.Ĭhanging your transmission fluid is essential for both components to function smoothly.
#PENNZOIL SYNCHROMESH TRANSMISSION FLUID MANUAL#
Recommended for Heavy Duty Manual Trucks. It is formulated with high-quality paraffinic base stocks, a fluidity modifier, multi-functional performance additives, corrosion inhibitors, a foam suppressor, and a shear stable viscosity. I hated the way the transmission was shifting on 1st to 2nd gear upshifts, and some downshifts. I have provided a Link to the specs of this fluid if you are interested. It has an approximate gear oil grade of about SAE 80W and can be used when temperatures range from -40✯ (-40✬) to 300✯ (150✬). Pennzoil Transmission Fluid Pennzoil SYNCHROMESH Quart Set. It also offers synchronizer compatibility for performance in manual transmissions. Pennzoil synchromesh fluid is a transmission additive designed for certain manual transaxles and manual transmissions used by General Motors or Chrysler. It may be OK for modern synchromesh transmissions, but it is NOT recommended for our old ones. Buy it by the case and save! PENNZOIL SYNCHROMESH FLUID is a synchromesh transmission fluid designed for certain manual transaxles and manual transmissions used by General Motors or Chrysler. To make a run of brass or bronze parts, you either have to pump out the coolant and replace it with one that's compatible with copper bearing materials, or slow everything down enough to just run the parts dry.Containing a high detergent additive system, it helps cope with water, dust, dirt, and any other small deposits you might encounter on or off-road 1. These sorts of coolants work great on steel, but they will chemically attack brass or bronze in a matter of seconds, making ugly looking stains on the surface that will not come off. I own a machine shop, and most of the best coolants for heavy duty machining of steel have high levels of sulfur bearing EP additives. Overall, anything with high EP additive levels doesn't play well with any sort of metal having copper as a major constituent.
#PENNZOIL SYNCHROMESH TRANSMISSION FLUID MANUALS#
Nissan even goes so far as to say in their manuals that you have to use GL-4 lube in their transmissions that call for GL-4 because GL-5 will destroy the transmission over time. IOW, getting worse at every step if used with brass parts. When they say it exceeds GL-6, that would imply that the EP additive level is even higher than the minimum for a GL-6 rating. This makes it even more likely to damage the brass parts. I said a lube that meets GL-6 is even worse in this situation because the -6 has an even higher level of EP additives. A GL-5's EP additives will form a bond to the brass that's tight enough to actually pull some of the brass off the surface rather than the oxide just peeling away like you want it to. This is what you want it to do as that's the way it slows wear. With a GL-4, the bond of the oxide to the brass surfaces is weak enough that it peels away under a sliding load. EP additives form a sulfur bearing oxide on the surface of metals. A GL-5 rating is bad, but a GL-6 is even worse for brass parts.Īs the GL rating goes higher, the bonding strength of the extreme pressure (EP) additives gets higher as well as the amount of EP additives being higher. The increased slipperiness of the synthetic fluids, while beneficial for most of the transmission, actually over-lubricates the older style synchronizers.Ĭlick to expand.The lube you're running now is probably about dead last on the list of what should be used in a transmission if It has brass blocker rings. You might end up with some gear clash even on a new or freahly rebuilt transmission. The extra slippery lube can make it difficult for the brass rings to get the needed "bite" on the synchronizer hubs.
#PENNZOIL SYNCHROMESH TRANSMISSION FLUID FULL#
The organic faced blocker rings are better able to cope with the increased lubrication properties of the synthetic lubes.īut I'd be cautious of using full synthetic lube in an older trans with brass blocker rings. I think this is where you see the recommendations for thinner synthetic lubes. But these trans used conventional brass blocker rings in the synchronizer assemblies.īut at least some more current model trans have blocker rings that look like metal stampings with a wear surface that looks like the organic clutch material used on the bands and clutch discs of an automatic transmission. I believe Chrysler even recommended ATF for better cold weather driveability. But I've seen Chrysler 4 speeds run with A/T fluid with no ill effects. I suspect that most older manual transmission were designed to work well with conventional gear lube and some may have even called for 30w motor oil.