Oils

Submitted: Friday, Apr 20, 2007 at 14:28

ThreadID: 44540 Views:2431 Replies:4 FollowUps:7

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Ianwa

Hi all,
I cannot get a straight answer from "those who should know". Can anybody here help?
I have 2 diesel vehicles : 1993 Ford Maverick (Nissan TD42 engine)
2003 Ford Transit campervan

oil and filter changes for the Maverick are due every 5000 kms or 3 months
'' ' Transit " " 15000 kms or 12 months

As the Maverick has only done 114000 kms and gets even less use these days I wonder if I could safely extend the time between services.
Are the oils that are good for 15000kms in the Transit different from the oil recommended for the ealier Maverick? or is it that other factors are involved?

what would happen if I tried the same oil in the Maverick as for the Transit?
Thanks in anticipation.

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Reply By: Shaker - Friday, Apr 20, 2007 at 14:39

Friday, Apr 20, 2007 at 14:39

Actually with the Maverick, if you are using it less, oil changes are even more important, & if anything should be more frequent.

In regard to manufacturer recommended long oil change intervals, I am not sure if the oil companies with agree. Not so much to sell more oil, but to ensure less build up of soot, carbon & other nasties.

AnswerID: 234754

Follow Up By: Rock Ape - Friday, Apr 20, 2007 at 15:38

Friday, Apr 20, 2007 at 15:38

Giday,
Have to agree with Shaker 100% he is on the money, especially with change of seasons and condensation ocurring in the sump.

As for a later post about not changing oil for 10yrs, stay well clear of that one.

Want proof have your oil analysed independantly and you will see the amount of carbon in it at 5000k and silica from dust that gets past the filter, also acids form from the sulpher.

The Ape

FollowupID: 495690

Follow Up By: Smudger - Friday, Apr 20, 2007 at 15:44

Friday, Apr 20, 2007 at 15:44

Yep, that's the good oil!
It depends on how long the engine gets to run after its' first start for the day. Aything less than 20 minutes and the engine can't emit the condensation and other contaminants that accumulate in the sump. In which case, change the oil twice as often as the manual says.

FollowupID: 495692

Reply By: Member - Oldplodder (QLD) - Friday, Apr 20, 2007 at 14:56

Friday, Apr 20, 2007 at 14:56

With the Maverick, oil changes still required every 6 months for a normal mineral oil.

Been told that once the engine turns over on the new oil, it gets contaminated, and starts to break down, even is just sitting there.
It's an age thing , even sitting there doing nothing, it still gets old :o)

With the Transit , other factors may come into play. e.g. Ols style diesel in the Maverick, new style diesel in the Transit, not as much contanimation from better fuel injection. May have better fiters too?
Does the Transit use a higher spec oil?

AnswerID: 234757

Follow Up By: tvl - Friday, Apr 20, 2007 at 15:28

Friday, Apr 20, 2007 at 15:28

I had a 1984 swb toyo for 10 years ,drove it every day (work truck)
Oil changes??? NONE! EVER! Sold it to a car dealers son and he had
a diesel mech do some tests on motor.result?motors perfect!!
Shocked me i can tell ya !

FollowupID: 495685

Reply By: Member - beachbum - Friday, Apr 20, 2007 at 16:29

Friday, Apr 20, 2007 at 16:29

Hi Ian and I had a a 1991 Maverack which had done 69,000ks when I brought it. I only ever changed the oil and filters every 10,000ks and it did 486,ooo up to when I sold it. It only went 8 kms each way to work during the week but did some pretty solid bush/beach work every second weekend for the seven years we had it and did a long trip every year for holidays. It was also used to tow an 18'6" half cab. It w3as a great, tough vehicle but would not do the same thing to later models. I really beleive that a lot of the "experts' get a bit too engrossed in what they read in the mags or hear from other 'Experts'. Definition of expert: Drip under pressure.

AnswerID: 234781

Reply By: furph - Friday, Apr 20, 2007 at 16:44

Friday, Apr 20, 2007 at 16:44

The Mav. is an indirect injection (injects into a small chamber in the head) and as such this type of engine is quite "dirty" causing rapid oil contamination.

The Ford Transit engine is direct injection (injects directly on top of the piston crown) and is considerably cleaner when it comes to oil contamination.

The recommendations of change intervals would be correct in both cases. For both vehicles an oil which meets B3, 15/40 specifications would be satisfactory.
furph

AnswerID: 234784

Follow Up By: Member - Kiwi Kia - Friday, Apr 20, 2007 at 17:52

Friday, Apr 20, 2007 at 17:52

Ianwa, LISTEN to the furph (above).

That IS the reason for the difference between the vehicle oil service requirements of those two vehicles.

FollowupID: 495721

Follow Up By: Tim HJ61 (WA) - Saturday, Apr 21, 2007 at 00:15

Saturday, Apr 21, 2007 at 00:15

So how come my 12HT Landcruiser - direct injection 1989 model - has a 5000km oil change cycle?

Tim

FollowupID: 495840

Follow Up By: Member - Phil G (SA) - Saturday, Apr 21, 2007 at 09:32

Saturday, Apr 21, 2007 at 09:32

Tim,
Toyota are noted for being conservative. It took them a while to extend the change interval to 10k on the direct injection TDs.

I've owned both 2H and 12H-T and at the time I noticed the oil took longer to go black on the 12H-T, so I extended the intervals.

FollowupID: 495870