I've an obsession that wan to share with you guys
In all my new cars I use to change oil and filter before the first official maintenance; it's around the first 5000 KM. Then I follow the maintenance periods. What do you think about ? Yuri
(ARS) XE1UN

13 RANGE ROVER SPORT HSE SDV6
Orkney Grey/Black
(Spain)

07 RANGE ROVER SPORT HSE TDV8
JavaBlack/Black
(SOLD)

05 DISCOVERY 3 G4 V8
(Spain)

02 DEFENDER 90 BLACK LE TD5
(SOLD)

13 FREELANDER 2 (LR2) HSE Lux SI4
Havana/Black
(Mexico)

I change the oil and filter every 5000 miles on my cars 2008 G4 RRSport TDV8 current
2009 TDCi 90 current
2018 Discovery 5 HSE lux current
1994 Dakar current

Changing the oil on a very regular basis, especially in a Diesel engine, can only be a good thing!

Jim

Can`t do any harm at all.

I will change oil and filter next Thursday in Barcelno. It'll have around 6500Km 4500 since December 11


 Yuri
(ARS) XE1UN

13 RANGE ROVER SPORT HSE SDV6
Orkney Grey/Black
(Spain)

07 RANGE ROVER SPORT HSE TDV8
JavaBlack/Black
(SOLD)

05 DISCOVERY 3 G4 V8
(Spain)

02 DEFENDER 90 BLACK LE TD5
(SOLD)

13 FREELANDER 2 (LR2) HSE Lux SI4
Havana/Black
(Mexico)

jim4244 wrote:

Changing the oil on a very regular basis, especially in a Diesel engine, can only be a good thing!

Jim

interesting point.... Maybe something in between ?
I know the new engines are very well adjust and is not like in the past that it was necessary to drive very easy during a period of time (5000km more lees) and make a oil and filter change. But anyway, I spouse that a new engine still having little adjust during a period of time....
Sorry about my English and hopes you will understand what I'm trying to express. Yuri
(ARS) XE1UN

13 RANGE ROVER SPORT HSE SDV6
Orkney Grey/Black
(Spain)

07 RANGE ROVER SPORT HSE TDV8
JavaBlack/Black
(SOLD)

05 DISCOVERY 3 G4 V8
(Spain)

02 DEFENDER 90 BLACK LE TD5
(SOLD)

13 FREELANDER 2 (LR2) HSE Lux SI4
Havana/Black
(Mexico)

Jochem,

Interesting. Just curious to know if you can refer us to the evidence for that theory about carbon (presumably in elemental form) being a good thing. The only information I can find is directly at odds with your comments.

"Soot is a by-product of combustion and exists in all in-service diesel engine motor oils. It reaches the engine by various means of blow-by during engine operation. While the presence of soot is normal and expected for a given number of miles or hours of service on an engine oil, the concentration and state of soot may be abnormal, signaling a problem with the engine and/or a need for an oil change. Following are some issues related to soot contamination:

Combustion efficiency is directly related to the soot generation rate. Poor ignition timing, restricted air filter and excessive ring clearance cause high soot load. Combustion problems are not solved by an oil change.

New diesel engines designed for lower emissions have higher injection pressures. This corresponds to increased sensitivity to abrasive wear (for example, from soot) between rocker, shaft and rocker bearing and can lead to rocker arm seizure. New exhaust gas recirculation (EGR) units on diesel engines amplify the amount and abrasivity of soot production.

Viscosity increases with soot load. However, high dispersancy associated with some modern engine oils may increase viscosity with soot even more. High viscosity corresponds to cold-start problems and risk of oil starvation.

Soot and sludge in engines deposit or separate from the oil in the following areas, all presenting risks to engine reliability including rocker boxes, valve covers, oil pans and head deck.

Deposits on engine surfaces interfere with combustion efficiency and fuel/oil economy.

Soot polishes off protective antiwear soap films in boundary zones such as cam and cam-follower zones.

Carbon jacking from the buildup of soot and sludge behind piston rings in grooves can cause rapid wear of rings and cylinder walls. This can cause broken or severely damaged rings during cold-start conditions."


Machinery Lubrication (5/2007)

About the Author
Jim Fitch
Jim Fitch, a founder and president of Noria Corporation, has a wealth of experience in lubrication, oil analysis, and machinery failure investigations. 2008 MY Java Black TDV8 HSE

There are 2 secrets to keeping the engines of drill ships, semi submersible drilling rigs and dive support vessels in tip top condition:

1/ Clean, filtered diesel fuel.
2/ Clean, filtered engine oil.

Dirty oil and fuel kills diesel engines, and as for carbon being "good" for a diesel engine I have never heard such cods wallop!

Jim