Hi Guys,
LR of Richmond tell me the recomended full synthetic oil for a 2003 Discovery is 15W40.
I tried the obvious (nearest) places, Lordco & Can. Tire and neither place has any :?:
They had 15W40 for Diesel engines but not for gas engines :?
Any suggestions as to where to get some. :?: :?: :?:
I could go to LR of Richmond but I'm sure they wouldn't be the best value (cheapest!!)
cheers,
Andy
Where to buy synthetic 15W40 oil?
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ANDYD
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Dave_F
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I run 15w40 diesel oil in my 1983 2.25 Series III 109 petrol engine.
This is upon recommendations from our President Don at Rovertech.
If I can remember I spoke to Don about Synthetics, and he said not to bother.
Interesting because my other ride...a 2002 Volvo Cross Country I was recommended by the dealer not to go synthetic as regular oil was good enough, and the benefit of the Synth oil was not worth the extra $$$...and this is from a dealer!!!!!!!! :shock:
Now to confuse things...I had a 1994 5.0L Mustang, and when I went to Synth Oil on that ride I REALLY noticed a big difference...particularly on startup. Used to crank 3-4 times then catch...as soon as I went Synth it would fire on the first turn of the key.
My ramblings...talk to a pro like Don at Rovertech for the straight goods.
This is upon recommendations from our President Don at Rovertech.
If I can remember I spoke to Don about Synthetics, and he said not to bother.
Interesting because my other ride...a 2002 Volvo Cross Country I was recommended by the dealer not to go synthetic as regular oil was good enough, and the benefit of the Synth oil was not worth the extra $$$...and this is from a dealer!!!!!!!! :shock:
Now to confuse things...I had a 1994 5.0L Mustang, and when I went to Synth Oil on that ride I REALLY noticed a big difference...particularly on startup. Used to crank 3-4 times then catch...as soon as I went Synth it would fire on the first turn of the key.
My ramblings...talk to a pro like Don at Rovertech for the straight goods.
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DaveB
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I use 15W40 in my diesel, and it's worked well.
About 5 years ago I ran 15W40 in my series truck with the Petrol engine. Over about a 6 month period, the engine started to smoke and had a far greater amount of blow-by than previously. This was on an engine that was relatively new at the time and created a fair bit of concern.
After discussion with several "oil experts" and a lot of reading, I concluded that the high detergent/additive level in 15W40, that's used to keep the soot in check on diesel engines is too high for a gas engine and as a result it was cleaning out the engine a bit too well. I went to Castrol 20W50 summers, and 10W30 winters, and the smoking stopped in short order.
Just my experience... I think 15W40 is rated for diesels for a reason, and if used in gas engines should only be done so for short periods, say one or two oil changes as a cleanout, rather than regular usage.
cheers, Dave
About 5 years ago I ran 15W40 in my series truck with the Petrol engine. Over about a 6 month period, the engine started to smoke and had a far greater amount of blow-by than previously. This was on an engine that was relatively new at the time and created a fair bit of concern.
After discussion with several "oil experts" and a lot of reading, I concluded that the high detergent/additive level in 15W40, that's used to keep the soot in check on diesel engines is too high for a gas engine and as a result it was cleaning out the engine a bit too well. I went to Castrol 20W50 summers, and 10W30 winters, and the smoking stopped in short order.
Just my experience... I think 15W40 is rated for diesels for a reason, and if used in gas engines should only be done so for short periods, say one or two oil changes as a cleanout, rather than regular usage.
cheers, Dave
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ANDYD
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Synthetic oil in a 2003 Discovery 4.6
Thanks guys for all the info.
The Disco has synthetic oil in right now so i figured it was best to stay with it when I change oil.
It seems there is no definitive answer, more personal preference :?
How many Discovery & Range Rover owners do we have out there running full synthetic oil and what are you using?? (come on, dont be shy!)
thanks,
Andy
The Disco has synthetic oil in right now so i figured it was best to stay with it when I change oil.
It seems there is no definitive answer, more personal preference :?
How many Discovery & Range Rover owners do we have out there running full synthetic oil and what are you using?? (come on, dont be shy!)
thanks,
Andy
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DaveB
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Hi Andy,
Opinion here... I think it's more important to give the truck regular changes with a maximum mileage of 5-6000 KM between changes than it is what type of oil you're using, so long as you're using a major brand, good quality oil. Most engine problems I've seen (once on my own vehicle back when I had the Nissan Pathfinder, and numerous on customer vehicles when I was in the trade) were due to breakdown of oil that was way overdue for a change and didn't do its job of protecting components.
Dave
Opinion here... I think it's more important to give the truck regular changes with a maximum mileage of 5-6000 KM between changes than it is what type of oil you're using, so long as you're using a major brand, good quality oil. Most engine problems I've seen (once on my own vehicle back when I had the Nissan Pathfinder, and numerous on customer vehicles when I was in the trade) were due to breakdown of oil that was way overdue for a change and didn't do its job of protecting components.
Dave
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DaveB
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On regular non-synthetic oil?!?red90 wrote: There is certainly NO need for 5000 km changes on a modern engine and a quality oil. That belief is a bad (North American) hang up from crappy old engines and crappy oil. On our VW, the factory changes are 16000 km and my own oil analysis shows the oil is barely 30% to the point of needing a change. Heck, my 20 year old Honda has factory intervals of 15000 km. On highway trucks are pushing 200000 km intervals based on oil analysis.
I agree, do what the manual says. On a Disco II the following chart is in the RAVE manual for viscosities:IMO, follow the factory guidelines unless you have oil analysis that says it needs changing earlier.
http://roverlanders.bc.ca/gallery-photo ... .sized.jpg
As to the maintenance schedule, I haven't been able to find one specifically for the Disco II. Does anyone have the passport book and tell us the factory recommended intervals?
I do know, on other maintenance schedules I've read for the Rover V8, such as that of the Disco I or the Defender, that it is 6000 KM the first change, and 12,000 KM thereafter, with the warning that if the vehicle is used off-road or under heavy load, that it should be more often. Since I'm not using full or part synthetic oil, and I regularly use my truck off-road, I tend to lean towards the side of changing the oil more often.
Dave