Hi i would just like to know what oil i can use in my 1989 toyota surf its a turbo diesel the manual says to use a sae 20w/40 cd or better but when i went to buy oil they sold me a 15w -40 api ch-4 is this...
The 15W-40 apiCH-4 oil will be fine for your 4Runner. It is "better", and here is why....
Your new oil being "ch" grade vs "cd" meets the qualification of "better" grade oil. Oil detergents are constantly being modified and as the letters climb alphabetically, each higher letter means that the oil exceeds the requirements of the grade before it. The "-4" is a designation I do not recognize, so I have some more reading to do. It may just mean that you bought a 4 quart (or liter) container or package, but no matter what it represents, this oil is still better.
The "15W-40" designation means that at 0 degrees F or below, the oil behaves as if it is 15 weight oil, and at operating temperatures, it acts like 40 weight oil. This formulation is designed to make cold weather starting easier, since the oil will be "thinner". Since your new oil is still rated as 40 weight at operating temperatures, just like the manual specifies, You should do fine with it.
Make sure you check your oil level once a week, since your 4Runner has a few years on it, it may be "burning" more oil from normal engine wear.
It is very important to change your oil regularly, especially with a diesel engine. The oil picks up allot of contaminants and it gets dirty very fast in a diesel. Follow the oil change schedule in your manual, and you will be good2go!
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Apr 14, 2011 |
1989 Toyota 4Runner