Thread: Patrol 4.2tdi fuel usage.

The 4.2 just craves a small turbo running 3-4 psi

A low boost setup sharpens throttle response, increase HP and torque, and improve fuel economy

Originally Posted by 7mmsaum

The 4.2 just craves a small turbo running 3-4 psi

A low boost setup sharpens throttle response, increase HP and torque, and improve fuel economy

Turbo on patrol runs about 7-8 psi,that was tested about 12 yrs go.

Nelson city to Hamner and back yesterday....speed limit set to 109kph and sat on that up hill down hill round corners plus a few flat to floor overtaking maneuvers and brake down to limit when back in lane.
Over 600km driving pretty hard...8.5l per hundy on the computer, and that is higher than actual usesage as running bigger tires so actually cover more kms than the computer thinks.
Real usage in the high 7s for driving like a rental.

Love how economical the Triton is.

Originally Posted by Trout

Turbo on patrol runs about 7-8 psi,that was tested about 12 yrs go.

Your talking to a diesel mechanic that passed both papers in 1987…………

I think @7mmsaum is refering to the old GQ's running no turbo. I do know a mate who turbo'd a SWB GQ and got low 30's mpg. (9?L/100km)

Not an economical way to drive at a set limit either because no coast run over on down hills and up the other side and up it on any uphill to maintain 109

My old auto SWB bounced around between 12-13 L/100. That had KL71 muds on it. Tyre pressures made a big difference.

Mines a big turbo running 30psi lol

Mine was non turbo but one of the black top high torque donks. That thing wasn't the crispest on response but stump pulling torque. It was hard on mounts and clutches!

Originally Posted by 7mmsaum

Your talking to a diesel mechanic that passed both papers in 1987…………

Well done on papers,im a broken old carpenter.I payed a diesel out fit in Timaru to check out the turbo.Thats the result they gave me,they called it a lazy old motor with a low turbo factory setting.

Beauty and the Beast in one.

1997 swb gq. 2 inch lift 33s roof rack. Factory turbo engine, running hx30 20psi top mount cooler, tuned pump putting out 185hp and about 470 NM. Can get 700kms from 70l on the regular driving from masterton to wanaka. Not too bad a for a old brick.

Originally Posted by No.3

They are not the best geared units (the engine trans and cases come out of Nissan's light truck parts line)

There are a range of diff options for them. I run the 4.11 diffs on 33" tyres on my few, all manual, non-turbo, tweaked injector pump. I could happily go to the 4.6 or 4.8 diffs.
They're not fast or pretty or too comfortable, but as said above "stump pulling torque" they'll tow about anything else on the road backwards, up hill and down dale.

Fuel usage? I couldn't tell you. I just fill em when they're looking to get to about half.

Originally Posted by 11mms

There are a range of diff options for them. I run the 4.11 diffs on 33" tyres on my few, all manual, non-turbo, tweaked injector pump. I could happily go to the 4.6 or 4.8 diffs.
They're not fast or pretty or too comfortable, but as said above "stump pulling torque" they'll tow about anything else on the road backwards, up hill and down dale.

Fuel usage? I couldn't tell you. I just fill em when they're looking to get to about half.

Mine strangley enough came with 3.9s and is a manual, helps my case with only doing 2100 is at 100km there deffently not built for economy but do a pretty good job

My fuel bill went down $200/M when I sold my Safari SWB (4.2 factory turbo) for a BT 50 3.2 and itll tow 3.5 tonnes uphill at a decent clip . . . But getting into z difficult spot - no comparision, its not even worth running muds on a BT50/Ranger.