Thread: Diesel additive needed or not

Originally Posted by Pepo1

Recently got a '97 diesel Nissan Terrano and wanted to know if this low sulphur diesel is actually a problem for older vehicles. I hear that the major suppliers, BP etc, have their own proprietary additives to compensate for the low sulphur. Is this true? Is there anything to be concerned about with pump seals deteriorating, etc? Don't want to spend money on additives if it's not necessary. Cheers.

I cant add anything to the quality of the diesel itself, but more the storage of it in massive tanks that rarely get cleaned or maintained (live rural)
so for my older diesels i use lucas fuel additive, reason being is users out of the usa who do massive km's swear by it over the years and have
experience to show that it works in their case. Like anything some guys will go/say ahh nah mate its snake oil yada yada ya but in my case i think
its made a difference. Use to have a 4jx1 98 isuzu wizard which was leaking diesel into the engine oil from the HP oil pump seals so was thinning
down its own oil with diesel so would do engine oil changes every 2500km as i couldn't repair the oil pump seal as no one sells them and its a big
complicated job, motor finally blew up after 3 years but the fact it lasted 3 years and 35,000km is testament in my mind to engine oil additives and
diesel additive.

Now i brought its replacement a 2000 2.8T 4m40 Mitsi Challenger which had a blown head / gasket, managed to get a replacement head kit for 700$
and replaced the head and its running like a top so for this one i have 10L of leftover new engine oil so im putting a 200ml bottle of engine oil into the diesel
tank which is 74L so im 2 stroking it as soon as i did it, did notice the engine noise immediately go down also use small amount of lucal fuel additive for
the sake of it so time will tell but how it work out but watched afew video's of guys doing it to even new diesels but as mine had egr removed and no dpf
filter less to worry about vs a newer diesel

Also keep a small bottle of fuel doctor incase of water crossing / refueling with contaminated diesel it can take care of a full tank of watered fuel and
get you back home instead of broken down in the river bed

Note: Thread down afew posts goes into diesel a wee bit
https://www.nzhuntingandshooting.co....x-prado-98920/