The 
was for the emissions tests.
I gave my two cents on Seafoam and don't feel the need to add more.
was for the emissions tests. I gave my two cents on Seafoam and don't feel the need to add more.
So, you're curious about Seafoam? (1 Viewer)
- Thread starter TheFuzz
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Would sea foam work on differentials? I worry that my diff fluid has never been changed at 170k. (Didnt see it in PO's maintenance records).
I'm about to replace with mobil1 synthetic and wondering if adding some seafoam first and driving if for 100 miles before see placing the gear oil would help clean the doffs out.
I'm about to replace with mobil1 synthetic and wondering if adding some seafoam first and driving if for 100 miles before see placing the gear oil would help clean the doffs out.
I am a Sea Foam fan, but I'd really want some hard fact that it would not harm your diffs. There is some extreme pressure at work in a differential and thinning down the fluid seems like it could lead to rapid wear. Also, what would be the benefit.
If you are worried. You could change the fluid a couple times over six months to ensure any crud gets out.
If you are worried. You could change the fluid a couple times over six months to ensure any crud gets out.
I probably wouldn't do seafoam, but I believe Amsoil has a detergent/lubricant they sell for just this purpose.
Great. I'll do that.
Mobil1 gear oil isn't cheap. I'd rather only buy it once. I didn't want to gunk up brand new, expensive diff oil by it cleaning out all the gunk in the diffs. Thanks OregonLC.
Why not refill with standard gear oil, drive a couple 100 miles and than switch? It would probably gather any left over particles and dirty gear oil.
FWIW, my rear drains as clean as it goes in. It's my center and front that seem to have the most wear, and understandably so.
Really bad idea to use a solvent in such an application. Bearing to race or crown to pinion interaction relies on a micro thin film lubricant to keep metal from contacting metal, remove or substantially dilute that film and you will induce a failure. If you're really keen to not contaminant the Mobil 1 use a cheaper temporary oil or a special purpose flushing oil as an interim as others have suggested.. Google "tribology" for the materials sciences perspective of how stuff in contact and motion can fail. Yeah, I've snoozed through more than one international society of tribologists conferences.
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I just seafoam'd my 100 and it smoked a lot! I did the fuel tank the next day after I bought it. I've been seafoaming my cars for the last 10 years or so.
I added a bottle of seafoam to a tank with 6 gallons in it. Then filled up.
When I got home I sucked 1/3 of a bottle in through the PCV hose. Let it sit 30 mins then replaced the Heater hose T-fittings, then started it up and revved it. Enough smoke to make the old lady on the sidewalk yell "oh god" and wave it out of her face. But less than I thought. I sucked a little more in then let it sit a few minutes while I cleaned up. Then revved it again. Much less smoke this time.
Let us know how the next few tanks go. I have a can sitting on my shelf waiting motivation.
I'll have to wait for the next road trip. My daily driving tanks are totally random. I might leave work at 10pm one night, take the highway and average 17 all the way home. Then the next day get stuck in stop and go and average 10.
I got concerned because I averaged 11-12 over a 1500 mile road trip a few weeks ago. Fingers crossed.
I did the 1/3 can in the vacuum and the rest in the tank. Cleaned MAF sensor and throttle body, tires to 40 lbs and the trip meter is showing I've gained somewhere in the neighborhood of 3-4 mpg when mixing city and highway driving.
Why not use techron on a regular interval? Also use top tier gas like Chevron that has techron added? Then you will never need any other treatments.
Appreciate the write up. Plan on doing this to my Runner and Hundy soon. Did it to my sons 2000 GTP and the car seemed to have taken well to it. Didnt do a follow up but my son said it "felt" better..
One can of seafoam a year is cheaper than not buying gas at Costco. Apparently premium gas has a lot more detergents in it also.
Costco has changed their formula with the last year and now purportedly is equal or better than Chevron. That's all I buy.
Is Costco now a top tier gas? I buy the Techron additive at Costco, I get 6 big bottles for $16. One bottle is good for 20 gallons of gas. What I do is use Chevron gas that has Techron already in it and then at every fill-up about 10 gallons I add a bottle of the techron. After doing this 6 times in a row, and always using Chevron my LX with 117k miles runs so smooth I feel no vibration, it's like a new vehicle. I do this every 5k miles. Works for me
