every once in a blue moon when I go to start my baby it will give a low idle like it wants to cut off but it does not car runs very well only use premium gas no misfires or anything can anybody give their opinion on this thanks alot.

 

What year and mileage? When was it last tuned?
Any fault code numbers and how low does the tach drop?

 

1996 119,000 well I just bought it amonth ago it drop to about 600 rpm well I have no check engine light on the person I bought it from maintained it pretty well new to rovers so don't know much I have the hayns manual to the truck well he did plugs and wires a few months back and replaced the seals but other than runs very well engine very quite no smoke starts right up tranny shifts smooth I really like the truck and plan on maintaining the truck also disco mike the guy that owned it used castrol 20/50 should I continue to use that or not?

 

600 RPM is normal. My truck actually idles a bit lower than that, sometimes just tipping 500. As for your oil any full synthetic oil should be fine, but that oil may not be the best choice for winter depending on where you live. I'm running 5w30 Mobil 1 High mileage.

Also since you just got the truck do a search for discomike's 60k service, it's just a general tune up list of things to do.

 

Ok thanks alot will do also I live in houston,tx area

 

Stick with the Castrol 20w-50 because of where you live.
600-750 is normal idle speed.
When the A/C compressor kicks in the idle will drop, this is normal.
If it drops below 500 rpm it will stall. Until that happens dont worry about it.
Then you will need a new stepper motor, also known as the idle control valve.

 

Thanks alot will do love this site.