who has experience w/Amsoil oils

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top1dra
Posts: 5
Joined: Mon Oct 29, 2007 11:50 am
Car: 1995 infiniti q45

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just got my q at an auction-i've been peepin Amsoils claims-whats the best synthetic oil & viscosity for cali weather-how bout synth ATF-thanx


texasoil
Posts: 875
Joined: Mon Sep 02, 2002 3:18 pm
Car: '92 Infiniti Q45A
'94 Infiniti Q45A
'94 Mercedes-Benz SL600

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10W40 works great in Southern Cal. Good for Death Valley summer, and down to 20F easy, 10F with good battery.

If you are going up into snow country 10W30. for down to 0F.

No reason to use synthetic transmission fluid--almost ALL the base oil in Dexron III is 'synthetic' to meet the low temp viscosity specs. Add 1 pint of Lubegard RED to the transmission after a FLUSH, then pan drop and filter clean (its a metal screen that is easy to wash clean. it is just to catch chunks of friction disk material. If the transmission is generating metal that's filterable, its toast anyway. Do replace the OEM transmission filter (down low in front of battery). AMSOIL IS great stuff. However, unless you are going to do lots of driving, you will not get any where near 25K miles/change B4 time (6mo max) is up. Personally, I prefer premium quality 'conventional' Valvoline 10W40 changed 4000 miles 6 months max in summer, 10W30 4 months max in winter.

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elwesso
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Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT
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texasoil wrote:10W40 works great in Southern Cal. Good for Death Valley summer, and down to 20F easy, 10F with good battery.

If you are going up into snow country 10W30. for down to 0F.

No reason to use synthetic transmission fluid--almost ALL the base oil in Dexron III is 'synthetic' to meet the low temp viscosity specs. Add 1 pint of Lubegard RED to the transmission after a FLUSH, then pan drop and filter clean (its a metal screen that is easy to wash clean. it is just to catch chunks of friction disk material. If the transmission is generating metal that's filterable, its toast anyway. Do replace the OEM transmission filter (down low in front of battery). AMSOIL IS great stuff. However, unless you are going to do lots of driving, you will not get any where near 25K miles/change B4 time (6mo max) is up. Personally, I prefer premium quality 'conventional' Valvoline 10W40 changed 4000 miles 6 months max in summer, 10W30 4 months max in winter.
This is why I do. I used to think synthetic was all-that then I decided that it was actually better to use cheaper conventional fluids and change often than go longer on synthetic.

I HATE amsoil, mainly because of their marketing scheme.


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