anyone use lucas oil for diff?

buckeyewhis · 06-27-2007, 08:30 AM

has anyone use the lucas syn oil for diff. fluid change?
My rear end makes a clunk sound when i shift from park to drive. so im going to change the fluid sat.
Should i ghange fluid then call nissan dealer?
what is the best fluid? i heard aimsoil, mobil 1, or royal blue. which one is the best? thanks everyone titan forum is a life saver.

KYDeepwater · 06-27-2007, 10:27 AM

The clunk is likely driveline play not associated with the rear diff. The oil additive products are mostly chlorinated olefins, which provide some extreme pressure protection between the gear teeth. For the most part, the additives in the oils are sufficient for the diff if it is not going bad. Next time you stop the truck, try putting the parking brake on before putting it in park. Then, when you start it up, put it in gear then let out the parking brake. If the clunk goes away, it is likely play in the driveline. The parking brake will prevent stress in the driveline and transmission. Mobil 1 and Royal Purple are both good oils. I've heard good things about Amsoil, but never used it. Mobil 1 uses a patented additive that the others don't have that keeps the oil cleaner longer to prevent oxidation and varnish build-up. They all use the same gear oil additives provided as a package from Lubrizol or one of their competitors. So, I would give a very slight advantage to the Mobil 1.

Kool n AZ · 07-02-2007, 11:00 PM

I used lucas oil stabilizer in the rear diff of my 01 SC Frontier. I could feel the difference in traction. The truck burned out easier, but I havent done it to my titan yet.

Justintoxicated · 07-05-2007, 12:04 PM

Quote:

Originally Posted by Kool n AZ

I used lucas oil stabilizer in the rear diff of my 01 SC Frontier. I could feel the difference in traction. The truck burned out easier, but I havent done it to my titan yet.

I wouldn't do it nissan will void your warranty (or try to) if they find out you used addatives.

Mine and every other titan I have been also makes a clunk when going from drive to reverse. I brought it in for this and we tried a couple more on the lot and they all did this. Granted it does not ALWAYS make this sound, and sometimes it is more noticable than others.