10w40

Pennzoil motor oil
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DevilDisco

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Aug 2, 2007
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Location
Jacksonville, NC
I've been lurking for some time and I must say. I've learned a lot of things I did not know before. Now I have questions. I re-read my manual and I see it calls for 10w40. I'v been using 5w-10W30 oil, dealer has been putting it in. (I checked the service ivoice.)

Has using 5W30-10W40 caused premature wear? Will adding Lucas Heavy Duty Oil stabilizer help prevent wear on startup?

The vehicle is an 04 Land Rover Discovery but has a version of a Buick 215 engine. See link! http://www.aluminumv8.com/tech/tech.htm

I read a post on here that said these older engine designs like a heavier oil. Will that quite my tap on startup?

The Motor is a high carbon, sludge prone engine. I've been using Lucas Upper Cylinder Lubrican to help with the carbon after talkling with Lucas Oil rep. He also suggested the Heavy Duty Oil Stabilizer. The Disco has 62k. The vehicle has also had 1 application of Auto-rx, but the tap is still there.

The Manual suggest 7,500 OCI but after the tap started and remained constant during normal operation I was told to change every 3k miles. The engine now just taps on starup but I'm afraid of all the wear that is taking place. Is there an oil that can lst for 7,500miles that will not sludge and not void the warranty?
 
My subaru developed a sticky hydralic lifter after sitting unused for a few months. Noisey every am and cleared up after about 10 mile. Changed the oil a few times, even to a thin 5w20, then even added some mmo when it didn't get better. That didn't even help. Resigned myself to having to either live with it or get inside and fix it. I re-oiled it with some 75k+ maxlife synblend 10w40 I had in stash just to get the thin mmo stuff out, guess what, after about 200miles it noticebly started going away every time I drove it. May have been the maxlife or coincidence? dunno, but' it's fine now, and I gave the car to my neice so it's her problem now LOL.
 
oops, forgot to say, have you tried a different filter brand? had a cold starter ticker after a oil change once that drove me nuts. Changed filters and it went away. POS tiny fram that I had stocked up on. About every 3rd one had a sticky bypass plate and spring.
 
I don't think anybody can say that a particular oil will or will not sludge your engine. From what you have said and seeing where you live, I would not be scared to run 10w40 in it. If you want to change oil under 5k miles a good dino (I'm a fan of Havoline) will do, or you can use synthetic if you want to go for the 7.5k changes.
 
I've been considering AMSOIL but that may be a waste if I'm doing 3k OCI's. I have used Vavloline MaxLife in another vheicle and I could always tell when it was not in the engine. Thinking of using the Synthetic.

As for filters. I have have used K&N HP 3001 Long filters for my vehicle. Still no difference. I've also tried Auto-RX. I have two bottles left so I'm thinking of doing another treatement.

Diesel oil may be the way to go because of the detergents but will that hurt my engine in any way.

I was also condisering one of these http://www.autoenginelube.com/

Rover owners seem to know it's the lifters, and expect to get 200k miles before an engine rebuild. I think with the tapping at start up gone it will make the engine last longer before a rebuild.

I take the lifter sound as a poor indication of lubrication at startup. Prelubing may solve that, but will xW40 sacrifice mileage for protection?

I also see that AMSOIL has a 0w20 that they say is good for an engine that takes xW30 but would that be too thin even though it would flow faster?
 
I'd run Rotella 15w40 in your Disco, changing it every 5k miles. No, Rotella will not harm your gasoline engine in any way whatsoever. Rotella is spec'd for use in gas engines as well as diesels. Look on the back of the bottle. There will be an API SL or SM rating listed after all the different diesel specs that the oil meets.

Out of sheer curiosity, have you ever had any kind of problems with your Disco? How pleased are you with it in general?
 
The Amsoil 10w30 diesel oil should flow very well.The role of detergent in diesel oil is over rated. It doesn't clean as much as it serves to suspend contaminants.10w30 HDEOs are on the heavy side of 30 and should quiet those lifters without being too thick.
 
The Amsoil should last 3-4 times the 3000 mile OCI,but Pablo or one of the other Amsoil guys could answer that better.Maybe consider Rotella 10w30 and a 5000 mile OCI.
 
No Lucas! Jus because it is an English SUV doesn't mean you need the Lucas, remember Lucas electrics. Try Valvoline Maxlife 10w40. If your manual says 10w40 then why not give it a try? The start up tick you hear is prob hydraulic lifters... Say ol' chap give her the 10w40 and carry on! Cheerio!
 
I thought because of the Magnusson-Moss Act that if a dealer was going to require you to use a specific oil that they had to give it to you for free?
You should be able to use whatever oil you want and not void the warranty.

The filter shouldn't cause the ticking, especially since it's underneath the engine (and upside-down) so oil can't drain out of it.

imho, 30wt would cause more wear than a 40wt. 3k OCi's shouldn't hurt anthing, even 7.5k might be ok with that big sump.

I just did the oil change on my sister's 2000 Range Rover and I used Mobil 1 5W40. They live in Albeqerque, NM, and I wanted something that'd work in the winter since they don't drive that much. I also changed out their diff oil, the bottom was about half full with silver oil. You might want to think about doing both diffs, the transfer case, and the transmission.

I'd use Mobil 1 or Shell Rotella (synthetic) 5W40 in your Disco. You can get it for cheap at Walmart. And think about using some www.auto-rx.com if your worried about sludge.
 
Quote:

I'd run Rotella 15w40 in your Disco, changing it every 5k miles. No, Rotella will not harm your gasoline engine in any way whatsoever. Rotella is spec'd for use in gas engines as well as diesels. Look on the back of the bottle. There will be an API SL or SM rating listed after all the different diesel specs that the oil meets.

Out of sheer curiosity, have you ever had any kind of problems with your Disco? How pleased are you with it in general?

Click to expand...


I think I will try the Rotella but I have WALMART phobia. I dread going in there but I do find a lot of good stuff when I do go.

The Disco has been quite good. The only problem I had was slef induced after a botched MOD. I have wanted one for a while when I finally got one last year I kept kicking myself beause I waited so long. These vehicles are good you just have to do the maintenance. They don't like to be neglected.
The motor has lots of torque like a diesel without the mileage benefits.
laugh.gif
In foul weather I would not want to be in anything else and when the weather is good the dual sun roofs are a treat. It's very sure footed, not as top heave as it looks. These days you can get one for a price that won't break the bank either.
ooo.gif
 
Thanks for the help everyone. I am roughly 1200 miles away from my next oil change so by the end of the month I should be ready.

I'm still deciding on which to use but the Shell Rotella 5W40 sounds like a good deal so I'll brave Walmart for that, and pick put a K&N filter. I've been warned to stay away from FRAM because it causes low oil pressure in these engines.

I have some AUT0-RX. Should I do a cleaning before switching to the 10w40 if its synthetic or just keep using it as a maint. does. I have heard that synthetics do not condition the seals. I think the Maxlife might keep the seals healthy. I'll could use up the AUTO-RX and the Rotella. I understand that they work well toghether.

No one said anything about the Pre-lubrication system, so I'm hoping the 10w40 will give me some satisfaction.
cheers.gif
 
Quote:

I thought because of the Magnusson-Moss Act that if a dealer was going to require you to use a specific oil that they had to give it to you for free?
You should be able to use whatever oil you want and not void the warranty.

The filter shouldn't cause the ticking, especially since it's underneath the engine (and upside-down) so oil can't drain out of it.

imho, 30wt would cause more wear than a 40wt. 3k OCi's shouldn't hurt anthing, even 7.5k might be ok with that big sump.

I just did the oil change on my sister's 2000 Range Rover and I used Mobil 1 5W40. They live in Albeqerque, NM, and I wanted something that'd work in the winter since they don't drive that much. I also changed out their diff oil, the bottom was about half full with silver oil. You might want to think about doing both diffs, the transfer case, and the transmission.

I'd use Mobil 1 or Shell Rotella (synthetic) 5W40 in your Disco. You can get it for cheap at Walmart. And think about using some www.auto-rx.com if your worried about sludge.

Click to expand...



Does your Sister's Range Rover Have the tap on starup? I am assuming she has Bosch 4.6L engine Since its a 2000.
 
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