UNLEADED petrol in n GQ 1995

Engines and Engine Systems
User avatar
Jules
Patrolman 1000+
Patrolman 1000+
Posts: 2024
Joined: 08 Apr 2009 09:13
Full Name: Julius
Nickname: Jules
Home Town: Rietjiesvlei, Zoeloeland
Current 4x4: Pathfinder
GQ Patrol
Home Language: AFR
Has thanked: 111 times
Been thanked: 67 times

UNLEADED petrol in n GQ 1995

Post by Jules »

vinnige vraag die persoon wat my GQ gekoop het 1995 en 4.2 petrol kontak my nou en sê hy kry nerens meer LRP om integooi nie?? sal daar enige skade wees as hy nou net Unleaded gebruik ?? ek weet ek het so nou en dan Unleaded ingegooi maar dit was dalk 1x in 5 maande

Shalom
Walk by FAITH not by sight
2014 Pathfinder 2.5 LE
Stofpad 4x4 Bashplate
60L Snomaster Freezer/Fridge

User avatar
Peter Connan
Moderator
Posts: 6366
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 744 times
Been thanked: 694 times

Re: UNLEADED petrol in n GQ 1995

Post by Peter Connan »

Behoort nie 'n probleem te wees nie Jules.
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
bogeyman
Senior Member
Senior Member
Posts: 316
Joined: 24 May 2011 11:14
Full Name: Christo Boegman
Nickname: Chris
Home Town: Pretoria
Current 4x4: 2005 4.8 GRX
'95 patrol 4.2 (now 4.5) sgx plus four 4.2 diesel p/u plus 3 safari workhorses.
Home Language: Afrikaans
Location: Pretoria
Been thanked: 78 times
Contact:

Re: UNLEADED petrol in n GQ 1995

Post by bogeyman »

Ek gooi so 250ml "valve ease" saam met elke tenk brandstof in my Safaris. Hulle L28 masjiene is nog erg "old school".

IanT
Patrolman 1000+
Patrolman 1000+
Posts: 1384
Joined: 17 May 2013 10:43
Full Name: Ian Temperley
Nickname: IanT (aka) "The Joker"
Home Town: JHB
Current 4x4: 1995 GQ 4.2 Petrol (Turbo Charged) (Hell Boy)
2008 4.8 GRX Umkombe
Home Language: English
Been thanked: 89 times

Re: UNLEADED petrol in n GQ 1995

Post by IanT »

Hellboy is a 95GQ and runs on 95 unleaed

User avatar
Jules
Patrolman 1000+
Patrolman 1000+
Posts: 2024
Joined: 08 Apr 2009 09:13
Full Name: Julius
Nickname: Jules
Home Town: Rietjiesvlei, Zoeloeland
Current 4x4: Pathfinder
GQ Patrol
Home Language: AFR
Has thanked: 111 times
Been thanked: 67 times

Re: UNLEADED petrol in n GQ 1995

Post by Jules »

Ian how long have you been running hellboy like that? do you not also gooi in n bit of valve ease every now and then ?
Walk by FAITH not by sight
2014 Pathfinder 2.5 LE
Stofpad 4x4 Bashplate
60L Snomaster Freezer/Fridge

User avatar
Peter Connan
Moderator
Posts: 6366
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 744 times
Been thanked: 694 times

Re: UNLEADED petrol in n GQ 1995

Post by Peter Connan »

It is my understanding that there are two possible reasons an engine may not be suitable for use with unleaded petrol (well, assuming we are talking about a petrol engine).

The first is valve seat recession. I understand this is only a concern on engines which have cast iron heads and on which the valve seat is cut directly into the cylinder head. The moment the valve seat is a separate replaceable item, the problem disappears. As the TB42 has an aluminium head with inserted seats, it is not subject to this issue.

The other issue is that some plastic materials are not compatible with unleaded fuels. This applies to some of the seals and tubing materials which may be used in the fuel delivery system.

Valve ease (and other additives) may address the first problem, but will not have any effect on the second problem. I am not saying that adding valve ease will have any negative effects, or that it won't have any benefits, but it does not address a specific problem caused by operating a TB42 on unleaded fuel.

So if he wants to add valve ease to salve his conscience, no problem, but he should not feel obligated to add it either.

As for the second problem, I don't thing the TB42 has any such materials in the fuel system. At least, I never had any issues with mine, and I used any old stuff for many years.
Mag ons ons kenniskry met lekkerkry aanhoukry.

IanT
Patrolman 1000+
Patrolman 1000+
Posts: 1384
Joined: 17 May 2013 10:43
Full Name: Ian Temperley
Nickname: IanT (aka) "The Joker"
Home Town: JHB
Current 4x4: 1995 GQ 4.2 Petrol (Turbo Charged) (Hell Boy)
2008 4.8 GRX Umkombe
Home Language: English
Been thanked: 89 times

Re: UNLEADED petrol in n GQ 1995

Post by IanT »

Hellboy has been running on unleaded from where I got him (not sure what the previous owner ran him on) so about 2 1/2 years now

User avatar
Alex Roux
Patrolman 1000+
Patrolman 1000+
Posts: 2808
Joined: 11 Jul 2011 10:54
Full Name: Alexander Roux
Nickname: Witblits
Home Town: Johannesburg
Current 4x4: 2004 GU 3TDi (Lexus) - aka "Witblits" (sold)
1996: GQ TB48 conversion - aka "Skilpad"
1993: GQ SWB TB42 - aka "Shortie"
1985: MQ Patrol (Safari) SD33 - aka "Toro"
Home Language: Afrikaans
Has thanked: 46 times
Been thanked: 180 times

Re: UNLEADED petrol in n GQ 1995

Post by Alex Roux »

Since I got Shorty (a 1993 TB42 Carb), I have given it 93 unleaded.
Never an issue there.
Skilpad, Shortie & Toro.

User avatar
Kagiso II
Patrolman 1000+
Patrolman 1000+
Posts: 3810
Joined: 10 Jun 2009 16:58
Full Name: Mac Mc Menamin
Nickname: Oom Mac [Uncle Mac] [Uncle] [Oompie] Kagiso
Home Town: BrentwoodPark, Benoni
Current 4x4: 1982 Datsun Safari 2,8 aka LOBO; [1,300,000 Km verby !]
'99 PATROL 4,2 diesel.
2012 Jimny [SWAMBO se Kantoor-toe]
Home Language: AFRIKAANS
Location: Benoni and wherever the Outreach takes me.
Has thanked: 313 times
Been thanked: 149 times
Contact:

Re: UNLEADED petrol in n GQ 1995

Post by Kagiso II »

The web site that used to be, one maintained by SABS, had a complete list of which petrol which vehicle requires, right at the time the "unleaded" gogga was introduced.
I remember my 1995 SANI required 93 unleaded [NOT LRP]
I bought Mussa last year, Tiaan ensured me he used unleaded in him and I still do -
i am sure that I had that website and the results in a post on this very forum, wayyyyy back
Maybe someone who knows how to search for it can confirm
I have it that ALL Nissans after 1993 could straight switch over to UNleaded. The GQ engine requiring 95 octane [Mussa pingggs with 93 ]
LOBO had his valve seats done by Vanderlinde, so also runs on unleaded


What I could find from Ozzi land, that all vehicles AFTER 1986 were suitable for UNleaded petrol
Don't bring God down to your level of faith ... bring your faith up to His level!

User avatar
Jules
Patrolman 1000+
Patrolman 1000+
Posts: 2024
Joined: 08 Apr 2009 09:13
Full Name: Julius
Nickname: Jules
Home Town: Rietjiesvlei, Zoeloeland
Current 4x4: Pathfinder
GQ Patrol
Home Language: AFR
Has thanked: 111 times
Been thanked: 67 times

Re: UNLEADED petrol in n GQ 1995

Post by Jules »

So dit wil my voorkom of die algemene siening is daar is geen probleem nie :bravo:

Dankie vur almal se insette QQQ

Shalom
Walk by FAITH not by sight
2014 Pathfinder 2.5 LE
Stofpad 4x4 Bashplate
60L Snomaster Freezer/Fridge

Post Reply

Return to “09. Engines”

Who is online

Users browsing this forum: No registered users and 7 guests