I was thinking about using some of that Prestone Fuel Injector Cleaner
on my L-300 but I was wondering if it might harm my engine? I was also
wondering how well a $5 product could clean Fuel Injectors on a car? So
what do you think is it worth it, or is it a waste of money to use it?
And would it do any damage to my engine? Thanks, for any, and all help
Chevron with Techron additive is the most recommended, it's the black
bottle. If you cannot find that, use STP Fuel Injection Cleaner, also in a
black bottle. Both can be bought at any auto parts store. Chevron additive
has worked the beat on our older Saturns, costs about $8. Tried Prestone,
did nothing for us.
I use a bottle of the STP injector cleaner every few months on my '01 lw300.
At the cost of fuel these days, every mpg gained by having a clean fuel
system is worth the cost of the cleaner.
The first time I used the cleaner, a week later I got a failure of the evap
canister vent solenoid. I replaced the solenoid twice - interestingly, it
always failed in August when it is hot. The third solenoid has been in
service for two years now and no problems. I think that the original parts
were of marginal actuation force and did not close always when actuated.
Bottom line is that there is no credible relationship between solenoid
failure and injector cleaner.
OK, So now I am not to sure if I should use it or not. I do not want to
damage any solenoids, or anything like that. I guess I better ask this
again will this product do any damage to my engine? I do not want to try
it if there is any chance that it will do "any" damage to my L-300
Seriously, go use a brand name fuel system cleaner.
I also try to put an engine flush in the oil before an oil change. I used to
use a '5 minute motor flush' but haven't seen that on the shelves for a
while. Now I use a quart of kerosene added to the oil prior to changing.
Warm up the engine, stop it to add the cleaner and then run at idle for 5
minutes. Stop engine and drain promptly.
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