The time has come to change the various oils in the D reg V8 RR classic. Just had a look in the Haynes BOL and it tells me differing quantities and types compared to the handbook which came with the car. So......
What oils does eveyone else use and what quantities will I need. Will be changing:
Engine Diffs (front and back) Transfer box Gearbox
Sorry for the dumb questions!!.
Dom J
I have been using heavy duty oils such as Mobil Delvac 1300 Super or Chevron Delo 400. Both are top notch commercial quality oils in 15w-40 or 10w-30 weights. The v-8 has huge bearing clearances as compared to newer designs, and is a high volume, low pressure oiling design. Thicker oils can be good, although if you do a lot of short trips I would go with the 10w-30 to get quick startup pressure to keep that camshaft from the usual wear. The diesel CI-4 rated additive packages for these oils can handle the dirty combustion of the v-8 better than most.
I use Mobil synthetic ATF in the xfer case and Mobil synthetic 75w-90 in the axles and swivels. It will test your swivel seals and preload (which affects the sealing by allowing movement in the hub assembly), but no leaks for me. If you go dino oil I would stick with straight 90 to avoid shearing common with multi-grade oils in gear boxes.
On or around Sun, 6 Jun 2004 16:15:41 +0100, "Dom J" enlightened us thusly:
20W50 or 15W50, ideally to API SG standard or better if you can get it.later engines are recommended to use 15W40, but I'm not certain where "later" starts - yours being about 1986 might qualify as "later" - what does the handbook say?
SAE 80W90 gear oil.
SAE 80W90
depends which gearbox, IIRC, but if you have the original handbook, then you should be OK with what that says. If the book says ATF, then you can also use SAE75 synthetic gear oil in it - it might change a bit heavy when it's stone cold.
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