Login Register

Good, bad or ugly? Bosch Spark plugs re: 1994 850 B5254F

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Post Reply
cn90
Posts: 8261
Joined: 31 March 2010
Year and Model: 2004 V70 2.5T
Location: Omaha NE
Has thanked: 4 times
Been thanked: 472 times

Re: Good, bad or ugly? Bosch Spark plugs re: 1994 850 B5254F

Post by cn90 »

tjts1 wrote:
cn90 wrote:According to the BMW E39 forum, similar discussion happens many times and the consensus is:
- Single-prong is better than Quad.
- Indexing spark plug is a myth.
Well thank goodness we don't drive E39s :D
Well, I have an E39 (1998 BMW 528i), once you drive the E39, you don't want to go back to the Volvo!
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

cn90
Posts: 8261
Joined: 31 March 2010
Year and Model: 2004 V70 2.5T
Location: Omaha NE
Has thanked: 4 times
Been thanked: 472 times

Post by cn90 »

Does anyone know if Bosch 7955 work well on a 1998 S70 GLT engine?
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

Ozark Lee
MVS Moderator
Posts: 14798
Joined: 7 September 2006
Year and Model: Many Volvos
Location: USA Midwest
Has thanked: 4 times
Been thanked: 75 times

Post by Ozark Lee »

I've got them in both the '98 S70 T5 and the '99 V70XC, they work fine.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

cn90
Posts: 8261
Joined: 31 March 2010
Year and Model: 2004 V70 2.5T
Location: Omaha NE
Has thanked: 4 times
Been thanked: 472 times

Post by cn90 »

Just a little update on NGK...

Just helped a friend replacing spark plugs on his 1998 S70 GLT with 180K miles.

- Old plugs are Bosch 7955 with 35K miles on them, the gap has gone from 0.028" ---> 0.035". Not too bad for 35K miles.

- Local store does not have Bosch 7955, so he bought NGK 6962 for $2.50/each, which I think is as good as Bosh 7955.

Plug-01.JPG
Plug-02.JPG
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

Post Reply
  • Similar Topics
    Replies
    Views
    Last post