I heard that AMS oil is 100% synthetic whereas Mobil 1 is not (full synthetic). Motul also has 100% synthetic engine oil. I have been using Mobil 1. Wondering if I should switch to AMS? I suspect that this would clean the engine better than full synthetic? Is AMS oil available at Autozone or pla…

Amsoil is fine stuff. Better than Mobil 1, no. More expensive, yes. The only place I see it on the shelf is at motorcycle shops… not Harley shops though.

[image] sciconf: I tracked it down to $30/10 gal regular price - who is the vendor? Amazon uses Super Tech which is better than M1 Supertech, Amazon Basic and Kirkland (Costco) are all made by the same manufacturer, Warren Distribution. Kirkland is $29.99 at Costco.com , $24.99 in the store. …

[image] sciconf: Pls see my post earlier on prices #29 - AMS XL is cheaper than M1 by a few bucks. Prices are: M1 AMS XL AMS Sig $32 $28 $39 Where are you getting your prices from? AMS XL is $9.50/qt. Mobil-1 at Walmart (TODAY) is $22.50 for 5 qts. That’s less then half the price.

[image] keith: It’s just another data point to consider. If you watched all the other tests, there really wasn’t as much difference between the oils as it looked like on the graphs. AMS is around 97 M1 is around 87 M1: consensus seems change every 5k. AMS XL 12k and AMS Sig 25k You save a…

[image] sciconf: AMS XL 12k and AMS Sig 25k I would never do that, regardless of whether AMS offers some sort of guarantee. Do they?

[image] MikeInNH: Where are you getting your prices from? AMS XL is $9.50/qt. Mobil-1 at Walmart (TODAY) is $22.50 for 5 qts. That’s less then half the price. My post #28 had links - direct from AMS = here are they: https://www.amsoil.com/p/xl-5w-30-synthetic-motor-oil-xlf/?code=XLF1G-EA ht…

Thank you for PROVING that AMS is more expensive then Mobil 1. https://www.amsoil.com/p/xl-5w-30-synthetic-motor-oil-xlf/?code=XLF1G-EA https://www.amsoil.com/p/signature-series-5w-30-synthetic-motor-oil-asl/?code=ASL1G-EA [image] <a href="https://www.walmart.com/ip/Mobil-1-Advanced-Full-Synthetic-Motor-Oil-5W-30-5-Quart/17034372?wmlspartner=wlpa&selectedSellerId=0&wl13=2142&&adid=22222222227017594582&wl0=&wl1=g&wl2=c&wl3=77517660408&wl4=aud-430887228898:pla-107413852608&wl5=9002283&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=local&wl12=17034372&veh=sem&gclid=CjwKCAjw19z6BRAYEiwAmo64LULiEVq6mcThWLPoA9y31DIDSos0I27PY8OSj5B3JNj_vGY-risQrhoCAPQQAvD_BwE" target="_blank" rel="nofollow noopener">Mobil 1 Advanced Full Synthetic Motor Oil 5W-30, 5 Quart …

[image] texases: I would never do that, regardless of whether AMS offers some sort of guarantee. Do they? Pls call and ask them/ Customers, 1,883 of them, given 5 star reviews - some say they used it 10yrs.

So how many vehicles have you kept past 300k miles?

[image] MikeInNH: Thank you for PROVING that AMS is more expensive then Mobil 1. You misread my post Look for AMS “PREFERRED PRICE” AMS XL is cheaper than M1 - also read my cost calculation

I just checked, their guarantees are for miles ‘or one year’, same as Mobil1. You cant put on 25,000 miles in a year without most all them being freeway miles. And folks that overpay for oil will not criticize it. What’s to criticize? Once they’re out the $$, the oil will work great, sure. Just…

Amsoil Vs Mobil 1

Maintenance/Repairs

MikeInNH September 8, 2020, 7:51pm 82

Thank you for PROVING that AMS is more expensive then Mobil 1.

https://www.amsoil.com/p/xl-5w-30-synthetic-motor-oil-xlf/?code=XLF1G-EA
https://www.amsoil.com/p/signature-series-5w-30-synthetic-motor-oil-asl/?code=ASL1G-EA

So what were you saying?

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Amsoil Vs Mobil 1

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