Was wondering how many BB's use fuel and oil additives in their bricks. By fuel/oil additives I mean fuel injector cleaners, engine restorers and octane boosters.
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1988 760Tic - 154,000, 1966 M-B 230 sedan - 98,000

I rarely use injector cleaner - only if my mileage drops or I have a reason to.

I've used seafoam twice- once, it made a big difference on a car with a bad AMM - the car dumped more than a few tablespoons of soot on the ground. The other time, nothing much seemed to happen. These were done with distilled water and seafoam pulled in through a vacuum line.

Generally, I just try to use quality oil, fuel, etc. I might put fuel injector cleaner (techron or seafoam if I intend to put it in the intake) in the gas 1-4 times a year. More with more driving.

I played around with octane booster and fuel injector cleaner as a kid, but it never seemed to be useful.

Three or four times a year I put Techron in each car with a fill-up before I take a trip of a hundred miles or more.

If you REALLY want to see some results, put an ounce of it in your snow blower or lawn mower. The first time I did my snow blower, it was running, and I could hear the difference immediately.

About 18 years ago, we bought our first Brick, an '88 745 GLE. I asked the service lady ( the best advisor I ever had ) if I should use fuel injector cleaner. She told me that Volvo does not recommend it.

A few years later after management had changed ( the owner had purged all the long-time employees and top management because of a dispute ) I got a '90 744 TI that ran a bit rough, when I asked what I should try, a new advisor told me to try injector cleaner.

I asked a friend of mine who had sold Volvos but left before the purge about the change of advice.

He told me that the old team got top ratings for service and they got a $1000 bonus at the end of the year for each new car that sold during the year - they had sold 1400 cars the year before and got a 1.4 million dollar bonus and figured that they could put 5-6 hundred into a customer if need be to keep their rating.

SO... whenever a car came in for service, they gave it a shot of injector cleaner from a big barrel they had.

The new team lost their top rating and lost their bonus and could not afford to buy the cleaner.

About a year later, Volvo helped the original management team that got purged open up a new dealership right down the street - Volvo did not like the firing of long-time employees - the new dealer put the other out of business in a few months.

I moved as soon as they opened.
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'96 855R,'64 PV544 driver, '67 P1800 basket case, '72 Yamaha Rd400, '68 Honda 350-4, '12 XC70, the first 5 are mine, heh, heh, 525,000 miles put on 10 bricks James A Sousa

this a brand called Lubromoly also called Liquimoly. both the same company. They have a anti-friction oil additive that contains MOS2 Molybdenum DiSulfide. I haven't found it in any store but it can be purchased online. you put it in when u change your oil and it makes the engine quieter and smoother. you can check there website for a product description Lubromoly.com. Another additive I use is called ZDDPplus. Its a 4oz concentrated formula of zinc/phosphorus. New oils only have about 800ppm zinc and 600ppm phosphorus. flat tappet camshafts require 1800ppm zinc and 1700ppm phosphorus. what zddp does is its an extreme pressure lubricant that protects the cam lobes from wearing down as they slide across the buckets. zddp and mos2 coat all internal engine parts with a protective layer of lubricant. less wear on cold starts and quieter and smoother engine. zddpplus.com explains it further. I use Mobil 1 synthetic either 5w30 or 10w30 with the MOS2 and zddp additives. I use royal purple synthetic in the auto trans, and i use mobil 1 75w90 synthetic GL5 in the differential. I dont use any fuel additives because i only put shell 93 octane in it which has plenty of cleaning additives already.

BB's,

Has anyone had any experience with a product called Seafoam? To run through your brick you need to take off a vacum line and run it into the bottle. It is supposed to clean intake/combustion chambers/valves very well. I've also thought it sounded shady but I have know people (and more imporantly their cars) that have benefited immensely from it's use. good for cars that have been negelected.
Although this really is not an additive moreso than it is a cleaner I suppose.

JS

There are no "safe" oil additives that did not come already in your oil. Use good oil - period.

There are some good oil flushes. Follow instructions.

There is ONE good AT additive: LubeGard.

There are several effective gasoline additives for combustion chamber and fuel system cleaning. Amsoil PI for generic fuel and cc cleaning. BG44K when a stronger compound is needed. I like to dump a brew in when cleaning a car that has been neglected....sometimes I like: 1 bottle of Redline FI cleaner, 1 bottle of full Techron, 1 bottle Amsoil PI into low tank of fuel (I prefer regular gas for this) drive hard and watch the shit fly...
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www.fidalgo.net/~brook4

The only additive that I use is BG 44K fuel system cleaner. I use it twice a year when I make regular long trips. I empty the can in the first tank then add a bottle of fuel injector cleaner like (STP) in the second tank, finish it up with a tank of 94 octane. As far as oil additives go, Volvo discourages any use of any additive. Now the dealer does add a can BG oil conditioner on regular scheduled services. Stay as far away as you can from Engine Restore if you have a Turbo.

Engine Restore claims to be safe for Turbocharged engines.
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1988 760Tic - 154,000, 1966 M-B 230 sedan - 98,000

Tell that to 4 or 5 Volvo owners each year that get to replace their seized Turbo's at my dealer. The techs love the stuff because it is a instant $1200 to $1500 job.

In both my 1986 244 and the 1988 244 I have used Techron. In most recent uses I put in the Techron just before filling tank and driving at least 50 miles. With the 88 we drove the tank all the way out on a 400 mile trip.

In both cases there was some improvement in smooth running.

Why Techron? Local car talk show host Skeeter swears by it, and by BG products, plus some other tips I can't right now recall.

Regards,

Bob

:>)

While a fuel additive or injector cleaner never cleared up a problem I was having, I guess it didn't hurt either. I'll usually use a bottle of Valvoline or Techron cleaner in the last tank before an oil change.

Just basing the logic on hearsay but in a high mileage engine that may have ring blowby, I think the oil change removes any cleaner that may find it's way into the sump and contaminate the oil. In Nissan, which we bought new and sold at 183,000 miles, I never had a fuel system issue but can't say the injector cleaner deserves the credit.

I've never used any oil treatment.
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Erwin in Memphis, '88 745t 183,000 miles, '95 855t For Sale

I have have used the Fuel injector cleaner (MI3000), power Steering flush and Transmission Conditioner from BG Chemicals (avail. from mechanics and the dealers generally) The injector cleaner (and the trannie conditioner) helped to make the car run smoother. Most importantly nothing adverse happened when I added this stuff so bonus. Just my 2 cents.

Tim

i recently put in a bottle of Techron obtained from the local Autozone. it didn't seem to do much. on the other hand, my car has always run consistently smooth and without probs. i guess you can't clean a system that is already clean. :)

many people here swear that Techron is fantastic stuff, so i would suggest that. i went on their word.
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Kenric Tam
1990 Volvo 740 base sedan (B230F)
My Volvo 'Project'

The only thing I've ever bothered with really is Fuel injection cleaners, other stuff tends to seem like a waste of money to me, allthough gearbox aditives can help on some cars (good if your auto is a bit rough).

I just started using a product called Fuel Doctor recently, it's a cleaner that is suposed to clean out your fuel system, worked wonders on my old 244, it even toned down the noise from the fuel pump a bit!

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Veronica, my 85 760Ti