Engine Oil type??

[Pedro_The_Swift]

Suitable for a 1988 Japanese V10 NA Diesel.....

On a very busy ( and scarey ) Sturt Highway it needed 1850rpm for 100

Reasons for recommendations needed.....
I can find them being used in a Giga model Isuzu in 2016 in Japan..
Apparently a Valvoline product was used last service.
It starts and runs fine, its very quiet, but blows some blue smoke under load and the Oil pressure gauge reads less than 3... somethings??
Hasnt been used for 5 months, trip home yesterday was 90mins.


On another note. The bus tend to wander.... ( see line two above...) straight ahead is anywhere from 2 to 10. Has new tyres all round.

As always, all comments Welcome[smilebigeye]

[DiscoDB]

Pedro - do you know the actual engine model number?

Should be on a name plate next to the oil filler.

[Pedro_The_Swift]

No... only that the original inspection ( after conversion) couldnt find one and the Official designated a new one... Its a 10PE1

Will have a look around myself...:banana::banana::banana:

[incisor]

V10 hey... always got to go a couple better!

do yourself a favour and have a chat to Brid at Cost Effective Maintenance.. re FTC and FOC

did wonders for my isuzu motors

[V8Ian]

V10 hey... always got to go a couple better!

do yourself a favour and have a chat to Brid at Cost Effective Maintenance.. re FTC and FOC

did wonders for my isuzu motors
CEF, brilliant stuff. I imagine it would work well with Penrite.

[V8Ian]

Start typing, Pedro.
lubetech@penriteoil.com.au

[Pedro_The_Swift]

Chassis LV719R3000087
Model V79RACX-5


I do have tie-rod part numbers,[bigrolf][bigrolf]

[Pedro_The_Swift]

The reply from Penrite was "we have NO bus info...."
They then asked us to consider their "HPR Diesel 15"

[DiscoDB]

I can find on-line a free manual for the 10PD1, which is the smaller V10 which was also fitted to the Isuzu Super Cruiser bus, but looks like you will have to buy the manual for the 10PE1. You will find several sites that have the 10PE1 manual available for download.

These are the lube specs for the 10PD1 and 12PD1:

https://uploads.tapatalk-cdn.com/20240111/aaf61bc622b73f14f7dab663d9aa8540.jpg

Do you know what oil grade was last used? And how do the oil pressures and temps compare to the specs listed for the 10PD1?

I would be inclined to go up to a 10W40 or even 15W40 grade oil (15W40 seems to be what Isuzu Trucks Australia recommend for all diesel engines from that era).

Time to find yourself a good Isuzu Truck and Bus Indy!

[Red90]

Just do a 15W-40 diesel engine oil.

You understand blue smoke is fuel and not engine oil?

[DiscoDB]

You understand blue smoke is fuel and not engine oil?

Excess fuel will be black. Blue indicates oil is being burnt.

[Pedro_The_Swift]

Excess fuel will be black. Blue indicates oil is being burnt.

This has always been my thought...
I have purchased some CEM gear...

[discorevy]

If you're in doubt about the colour of the smoke, someone behind the bus with an educated pair of nostrils could tell.

yep, 15/40 E7 would be fine for non DPF

[Red90]

Excess fuel will be black. Blue indicates oil is being burnt.

That is false. Black is excess but fully burnt fuel. Blue means it is partially burnt. Normally caused by retarded timing.

[DiscoDB]

That is false. Black is excess but fully burnt fuel. Blue means it is partially burnt. Normally caused by retarded timing.

Certainly worthwhile checking the timing - especially if the injector pump has been removed at any stage.

A calibrated nose would help confirm!

[350RRC]

That is false. Black is excess but fully burnt fuel. Blue means it is partially burnt. Normally caused by retarded timing.

An old post on AULRO:

Blue smoke from a Diesel, only under certain conditions (https://www.aulro.com/afvb/technical-chatter/21823-blue-smoke-diesel-only-under-certain-conditions.html)

Symptoms on page 1, narrative following in various posts, solution on page 3.

I have a newish Deutz tractor (the last of the non electronic era) with less than 1k hours on it.

Gives a very small puff of blue (that smells of diesel) when given a squirt, doesn't use oil at all.

I'm not particularly concerned.

cheers, DL