I'm looking into buying a jeep for myself for this summer... buying a used slightly older... 88-95ish.... I'm just wondering if jeeps are as reliable as i've always thought they were? My brother told me not to buy a jeep unless it is new, (he owned a early 90's cherokee). I'm more interested in a YJ or TJ... I've also heard the I4 is pretty gutless and to stick with the I6 4.0 L... Any comments would be appreciated!