before I put this in my differential

[jackag91]

Is there any problem with using this?

Royal purple gear oil product sheet

 

[DNK]

Will it fit?

 

[vettedog72]

I think all the Royal Purple products are great because they lubricate better than oil of yester year BUT the composition of seals, gaskets and retainers as well as the design of these devises made in the "old days" are not the same as the new high tech products of today. I don't think our old cars can take advantage of todays improved products with out modifications. It's not just Royal Purple but synthetic oils in general that seem to leak more than the non synthetic oils. If you don't mind a little more oil leaks, go for it; you may be one of the few lucky ones that has no problems.

 

[Guest]

I agree with Vettedog. Stick with Hypoy 90.

 

[TR3driver]

Is there any problem with using this?

Should be fine, IMO. I use Valvoline full synthetic gear oil in all my Triumph differentials, and it doesn't leak any worse than dinosaur juice for me. I also credit it with making my TR3A diff hold up so long (over 100,000 miles since I bought the car & well-worn then).

 

[jackag91]

I agree with Vettedog. Stick with Hypoy 90.

All of the castrol products I saw in the stores are all GL-5. This was the only one that I could find that was GL-4.

I think I am going to give it a try. I will let you know if I have any issues.

 

[YankeeTR]

I used synthetic in the rear gear of TS 74011 L without any problems. BTW...That IS a GL-5 lube but it should be fine for use in the rear axle.

 

[jackag91]

I used synthetic in the rear gear of TS 74011 L without any problems. BTW...That IS a GL-5 lube but it should be fine for use in the rear axle.

True that is a GL-5 lube, but it does have this note on it.

<div class="ubbcode-block"><div class="ubbcode-header">Quote:]

My vehicle's transmission specifies an API GL-4 gear oil. Can I use Max-Gear?




Yes. Max-Gear possesses both API GL-5 and GL-4 certification. Max-Gear is formulated with Royal Purple's proprietary, Synslide additive technology to provide the exceptional film strength necessary for GL-5 applications, yet it is noncorrosive to soft metals found in manual transmissions that specify a GL-4 rated lubricant.[/QUOTE]

 

[Bugeye58]

I used nothing but Royal Purple in the tranny and the diff on the Spit racecar, and never had a leak or a problem. Good stuff, in my estimation.
Jeff