G

grewth

Active Member

• Sep 8, 2024

• #1

I've just fitted a 12J diesel in what seems to be VGC.
What oil should I be using to minimise engine wear and make this lump last as long as possible ?
I'm not the slightest bit interested in reducing internal friction and getting better fuel mileage, or reducing mechanical noise.
I just want stop my engine internals wearing away.

 

Henry_b

Think outside, no box required.

• Sep 8, 2024

• #2

15w40.

 

G

grewth

Active Member

• Sep 8, 2024

• #3

Henry_b said:

15w40.

Click to expand...

Can using a less viscous (thinner) oil cause lower rates of engine wear ?
Apparently it can, but I don't quite understand how.
Except maybe in extreme cold conditions.
Looks like I need to deepen my understanding of how multigrade oils work

 

steve2286w

Well-Known Member

• Sep 9, 2024

• #4

I put this in my 200di

Shell Helix HX7 15W-40 | Shell Global

Synthetic technology motor oil - Helps to keep engines clean and running efficiently

www.shell.com

When I stripped engine it was spotless and unworn inside with no build up of sludge anywhere and noil galleries clear , I wanted to keep it that way and dont mind paying a bit extra

 

L

lynall

Well-Known Member

Full Member

• Sep 9, 2024

• #5

Engine good 15/40
Engine worn 20/50

 

G

grewth

Active Member

• Sep 9, 2024

• #6

lynall said:

Engine good 15/40
Engine worn 20/50

Click to expand...

In the case of the "boat anchor" that I've recently removed, 20/50 with about two litres of used EP90 added to it.
Desperate times call for desperate measures