1996 Land Rover discovery oil

[Andyd95]

Always ran a 15w40 Diesel or 10w40 M1 in those engines

 

[Newuser]

Must be careful as Domestic U.S. lubricant certifications (API/ILSAC)
are different from EU (ACEA) Approvals and Certifications

Your 5w40 is likely a MB229.5x and VAG 505, Porsche A40 Approved lubricant
A domestic 10w40 would likely not carry these approvals

Your Brit "improved" old Buick pushrod engine is not high specific output, so a high spec is not critical.

If it is an easy solution run your QS 5W40 it should perform satisfactorily given the history of 40 grade oils used historically.

Does the vehicle have over 160K km on it?

Enjoy the olde Landy!

The odometer stopped working a million years ago. I’ve had heads redone, timing, and possibly a cam years back.

Unsure of mileage but it’s always felt strong for what it is.

Changed it with Quaker state 5w-40 euro this morning and the engine is much smoother.

 

[wings&wheels]

You'll be fine.

I'd use a quality syn 5W-40 such as Mobil1 TDT (also suitable for gasoline fueled engines), and the Mahle or, better yet Coopers/FIAAM filters. The Coopers/FIAAM is one of the best appearing filters I have ever dissected.

RovahFarm Engine

Coopers/FIAAM

 

[Newuser]

You'll be fine.

I'd use a quality syn 5W-40 such as Mobil1 TDT (also suitable for gasoline fueled engines), and the Mahle or, better yet Coopers/FIAAM filters. The Coopers/FIAAM is one of the best appearing filters I have ever dissected.

RovahFarm Engine

Coopers/FIAAM

I have a stash of Mahle filters that also fit another vehicle I own. They are now made in china sadly

 

[wings&wheels]

I have a stash of Mahle filters that also fit another vehicle I own. They are now made in china sadly

The OC261's are now???? Darn. I know the ones for my 993 are now China COO and I will post a dissection and comparison soon. Well, the CF still appear to be COO Italy.

Not that China is not capable of making a fine product, but agree it is a bit distasteful.

 

[Newuser]

The OC261's are now???? Darn. I know the ones for my 993 are now China COO and I will post a dissection and comparison soon. Well, the CF still appear to be COO Italy.

Not that China is not capable of making a fine product, but agree it is a bit distasteful.

I will have to check the exact part number. They were ordered through FCP euro.

 

[mm3846]

I always ran Rotella T6 in mine

 

[Abax25]

Bored 215. 10W40 is traditionally a bad oil multigrade. Unless you are working it real hard or your bearings are very worn it, is hard to beat a good 10W30 as un-glamourous as it seems.

Bored 215. 10W40 is traditionally a bad oil multigrade. Unless you are working it real hard or your bearings are very worn it, is hard to beat a good 10W30 as un-glamourous as it seems.

Curious why you would recommend a 10w-30 over a 5w-30?

 

[FCD]

The Rover aka Buick V8 is one of the best V8s ever made, they tolerate many viscosities, i have a friend who owns a 4.0 too and has run 20w50 in it from new and it runs great.
I would go for a good full saps 5w40 , A3/B4 rated if possible.

 

[Abax25]

The Rover aka Buick V8 is one of the best V8s ever made, they tolerate many viscosities, i have a friend who owns a 4.0 too and has run 20w50 in it from new and it runs great.
I would go for a good full saps 5w40 , A3/B4 rated if possible.

I’ve never heard anyone say the Rover V8 is one of the best V8s ever made…..

They are on the heavy side for aluminum, have rather big known issues, gutless, and return horrible fuel economy figures.

Aside from being easy to work on, there’s not many upsides!

 

[wavinwayne]

Doesn't matter what oil you run, as it will just end up on the garage floor. Kidding aside, I would run M1 10W40 if it was available, or M1 0W40 otherwise....or a Euro 5W40 if it was on sale.

 

[nthach]

10W-30 PCMO, 15W-40/5W-40 HDEO or Euro 5W-30/40 would be my picks. It’s an old British V8 based off a Buick design so nothing fancy needed. Euro and diesel engine oils are stouter but I don’t think it will complain on a “regular” 10W-30 either.

 

[FCD]

I’ve never heard anyone say the Rover V8 is one of the best V8s ever made…..

They are on the heavy side for aluminum, have rather big known issues, gutless, and return horrible fuel economy figures.

Aside from being easy to work on, there’s not many upsides!

TVR used it until the mid 2000s, must be for a reason.

 

[Abax25]

TVR used it until the mid 2000s, must be for a reason.

Cost.

Where is TVR today? Haha